{"id":2760,"date":"2022-07-24T11:48:55","date_gmt":"2022-07-24T11:48:55","guid":{"rendered":"https:\/\/www.motorhowto.com\/?p=2760"},"modified":"2022-11-14T22:10:58","modified_gmt":"2022-11-14T22:10:58","slug":"car-audio-big-3-upgrade","status":"publish","type":"post","link":"https:\/\/www.motorhowto.com\/car-audio-big-3-upgrade\/","title":{"rendered":"What Is The Car Audio Big 3 Upgrade? (8 Benefits Explained)"},"content":{"rendered":"\n<p>Whenever you are thinking of upgrading the factory-fitted audio system to get a better, upgraded sound, you also need to think about your car&#8217;s electrical system.<\/p>\n\n\n\n<p>Your car&#8217;s factory-fitted electrical system is not designed or capable of handling after-market, high-power audio systems so they also need an upgrade. <\/p>\n\n\n\n<p><em>But what exactly is the car audio Big 3 Upgrade<\/em>?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Here&#8217;s What Big 3 Upgrade In A Car Is<\/h2>\n\n\n\n<p><strong>A factory-fitted audio system typically can handle 600-1000 Watts, but if you want to upgrade your audio system above that, then you have to upgrade your car&#8217;s electrical system as well, which includes a battery, high output alternator, and 3 power cables. Upgrading these 3 stock cables with 1\/0 gauge insulated cables is called the Big 3 Upgrade<\/strong>!<\/p>\n\n\n\t\t\t\t<div class=\"wp-block-uagb-table-of-contents uagb-toc__align-left uagb-toc__columns-1  uagb-block-f2388fe2     \"\n\t\t\t\t\tdata-scroll= \"1\"\n\t\t\t\t\tdata-offset= \"30\"\n\t\t\t\t\tstyle=\"\"\n\t\t\t\t>\n\t\t\t\t<div class=\"uagb-toc__wrap\">\n\t\t\t\t\t\t<div class=\"uagb-toc__title\">\n\t\t\t\t\t\t\tTable Of Contents\t\t\t\t\t\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 384 512\"><path d=\"M192 384c-8.188 0-16.38-3.125-22.62-9.375l-160-160c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0L192 306.8l137.4-137.4c12.5-12.5 32.75-12.5 45.25 0s12.5 32.75 0 45.25l-160 160C208.4 380.9 200.2 384 192 384z\"><\/path><\/svg>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"uagb-toc__list-wrap\">\n\t\t\t\t\t\t<ol class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#heres-what-big-3-upgrade-in-a-car-is\" class=\"uagb-toc-link__trigger\">Here&#039;s What Big 3 Upgrade In A Car Is<\/a><li class=\"uagb-toc__list\"><a href=\"#what-does-a-big-3-consist-of-and-how-to-install-it\" class=\"uagb-toc-link__trigger\">What Does A Big 3 Consist Of, And How To Install It?<\/a><ul class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#alternator-to-the-positive-battery-terminal-blue-red-or-green-color\" class=\"uagb-toc-link__trigger\">Alternator to the positive battery terminal (Blue, Red, or Green color)<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#car-body-frame-ground-to-negative-battery-terminal-black-or-grey-color\" class=\"uagb-toc-link__trigger\">Car body frame ground to negative battery terminal (Black or Grey color)<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#engine-block-ground-to-negative-battery-terminal-black-or-grey-color\" class=\"uagb-toc-link__trigger\">Engine block ground to negative battery terminal (Black or Grey color)<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#steps-to-the-big-3-upgrade\" class=\"uagb-toc-link__trigger\">Steps to the Big 3 Upgrade:<\/a><\/li><\/ul><\/li><li class=\"uagb-toc__list\"><a href=\"#what-tools-do-i-need-for-the-big-3-upgrade\" class=\"uagb-toc-link__trigger\">What Tools Do I Need For The Big 3 Upgrade<\/a><ul class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#big-3-upgrade-kit\" class=\"uagb-toc-link__trigger\">Big 3 Upgrade Kit<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#tools\" class=\"uagb-toc-link__trigger\">Tools<\/a><\/li><\/ul><\/li><\/ul><\/li><li class=\"uagb-toc__list\"><a href=\"#is-a-big-3-upgrade-worth-it\" class=\"uagb-toc-link__trigger\">Is A Big 3 Upgrade Worth It?<\/a><ul class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#1-upgraded-sound-quality\" class=\"uagb-toc-link__trigger\">1. Upgraded Sound Quality<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#2-faster-battery-charging\" class=\"uagb-toc-link__trigger\">2. Faster Battery Charging<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#3-low-voltage-problem\" class=\"uagb-toc-link__trigger\">3. Low Voltage Problem<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#4-quick-engine-start\" class=\"uagb-toc-link__trigger\">4. Quick Engine Start<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#5-heat-management\" class=\"uagb-toc-link__trigger\">5. Heat Management<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#6-improved-safety\" class=\"uagb-toc-link__trigger\">6. Improved Safety<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#7-better-fuel-efficiency\" class=\"uagb-toc-link__trigger\">7. Better Fuel Efficiency<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#8-looks\" class=\"uagb-toc-link__trigger\">8. Looks<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><li class=\"uagb-toc__list\"><a href=\"#do-i-need-other-upgrades-with-big-3\" class=\"uagb-toc-link__trigger\">Do I Need Other Upgrades With Big 3?<\/a><ul class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#high-output-alternator\" class=\"uagb-toc-link__trigger\">High output alternator<\/a><li class=\"uagb-toc__list\"><li class=\"uagb-toc__list\"><a href=\"#battery\" class=\"uagb-toc-link__trigger\">Battery<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><li class=\"uagb-toc__list\"><a href=\"#what-big-3-upgrade-doesnt-do\" class=\"uagb-toc-link__trigger\">What Big 3 Upgrade Doesn&#039;t Do?<\/a><li class=\"uagb-toc__list\"><a href=\"#what-is-the-big-4-upgrade-and-how-is-it-different\" class=\"uagb-toc-link__trigger\">What Is The Big 4 Upgrade And How Is It Different?<\/a><li class=\"uagb-toc__list\"><a href=\"#summing-it-up\" class=\"uagb-toc-link__trigger\">Summing It Up<\/a><\/ul><\/ul><\/ul><\/ul><\/ol>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px-1024x683.webp\" alt=\"Red positive car battery cable lug crimped\" class=\"wp-image-2997\" srcset=\"https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px-1024x683.webp 1024w, https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px-300x200.webp 300w, https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px-768x512.webp 768w, https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Red positive car battery cable lug crimped<\/figcaption><\/figure>\n\n\n\n<p>In addition to powering your aftermarket audio system, installing a Big 3 Upgrade is also a great way to improve the car&#8217;s electrical charging system, improve the efficiency of your car&#8217;s electrical system, deal with dimming lights and manage increased demand for your car&#8217;s general use.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Related:<\/strong><\/p>\n\n\n\n<ul>\n<li><a href=\"https:\/\/www.motorhowto.com\/car-audio-battery\/\">What is a Car Audio Battery? (Explained for Beginners)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.motorhowto.com\/deep-cycle-battery-car-audio\/\">Can I Use Deep Cycle Battery For Car Audio? (Explained)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.motorhowto.com\/can-i-store-car-battery-in-trunk\/\">Can I Store A Car Battery In My Trunk? (Must Read)<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What Does A Big 3 Consist Of, And How To Install It?<\/h2>\n\n\n\n<p>The Big 3 Upgrade includes upgrading 3 stock cables with 1\/0 gauge insulated cables at 3 distinct locations.<\/p>\n\n\n\n<p>Below are the 3 cables that are upgraded as part of the Big 3 Upgrades:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Alternator to the positive battery terminal (Blue, Red, or Green color)<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/positive-battery-terminal-1200x800px.webp\" alt=\"Positive car battery terminal connector box\" class=\"wp-image-2789\"\/><figcaption class=\"wp-element-caption\">Positive car battery terminal connector box<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Car body frame ground to negative battery terminal (Black or Grey color)<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Battery-Chassis-Ground-1200x800px.webp\" alt=\"Hyundai Tucson 2016 Car battery chassis ground\" class=\"wp-image-2791\"\/><figcaption class=\"wp-element-caption\">Hyundai Tucson 2016 Car battery chassis ground<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Engine block ground to negative battery terminal (Black or Grey color)<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Negative-battery-terminal-1200x800px.webp\" alt=\"Hyundai Tucson 2016 Car battery negative terminal \" class=\"wp-image-2790\"\/><figcaption class=\"wp-element-caption\">Hyundai Tucson 2016 Car battery negative terminal<\/figcaption><\/figure>\n\n\n\n<p>The reason you do a Big 3 Upgrade is that the stock wiring that comes with the car is not designed for aftermarket audio systems, so you need to upgrade these power cables to 1\/0 gauge insulated power cables.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Steps to the Big 3 Upgrade:<\/strong><\/h3>\n\n\n\n<ul>\n<li>Make sure to disconnect the negative and positive battery cables to completely isolate the battery.<\/li>\n\n\n\n<li>Prepare the 1\/0 gauge cable with the terminal to replace the factory-fitted cable connecting from the alternative charge to the positive of the battery. Make sure the new 1\/0 gauge cable doesn&#8217;t interfere with the engine and radiator so secure it neatly. For safety, the alternator charge cable should be fused within 12 inches of the positive battery terminal<\/li>\n\n\n\n<li>The next step is to ground the main battery to the frame or chassis of the car with a 1\/0 gauge insulated cable. The point of the ground should be free of any paint or debris that could reduce resistance. Strut tower nuts are directly connected to the car&#8217;s chassis and also have stronger nuts so you can secure the cable firmly.<\/li>\n\n\n\n<li>Finally, connect the engine block or head to the battery ground. Make sure you find a large bolt on a sturdy part of the engine block or head to connect to the ground. <\/li>\n\n\n\n<li>Your big 3 upgrade is now complete!<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What Tools Do I Need For The Big 3 Upgrade<\/h2>\n\n\n\n<p>Below are the tools you need to perform the Big 3 Upgrade:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Big 3 Upgrade Kit<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Battery-ground-cable-clip-1200x800px.webp\" alt=\"Car battery cable ground clip\" class=\"wp-image-2803\"\/><figcaption class=\"wp-element-caption\">Car battery cable ground clip<\/figcaption><\/figure>\n\n\n\n<ul>\n<li>1\/0 gauge heavy-duty insulated cable of different color codes (Positive &amp; Ground)<\/li>\n\n\n\n<li>Heat shrink <\/li>\n\n\n\n<li>Ring terminal<\/li>\n\n\n\n<li>cable or zip ties<\/li>\n\n\n\n<li>cable holder<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Tools<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Car-repair-tools-1200x800px.webp\" alt=\"Automobile car repair toolset\" class=\"wp-image-2799\"\/><figcaption class=\"wp-element-caption\">Automobile car repair toolset<\/figcaption><\/figure>\n\n\n\n<ul>\n<li>Tools to cut the 1\/0 gauge cable<\/li>\n\n\n\n<li>Plyers or clippers<\/li>\n\n\n\n<li>Tools to cut the 1\/0 gauge cable insulation <\/li>\n\n\n\n<li>Sharp blade<\/li>\n\n\n\n<li>Heat gun<\/li>\n\n\n\n<li>Hydraulic crimper or vice<\/li>\n\n\n\n<li>Wrenches<\/li>\n\n\n\n<li>Sockets<\/li>\n\n\n\n<li>Ratchet<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Is A Big 3 Upgrade Worth It?<\/h2>\n\n\n\n<p>If you&#8217;ve ever driven a new car, you know how it feels to have everything work perfectly. The dashboard is perfect, the speakers sound crisp, and all your gadgets are plugged in and charged. <\/p>\n\n\n\n<p>But as time goes on, we tend not to pay as much attention to the condition of our cars\u2014especially when they&#8217;re running just fine like they always have been.<\/p>\n\n\n\n<p>That&#8217;s why upgrading your car&#8217;s Big 3 electrical and audio systems can be such a good idea: it allows you to take stock of how things are working for you now and ensure that everything is up-to-date with today&#8217;s standards. <\/p>\n\n\n\n<p>And if something isn&#8217;t working perfectly anymore? It&#8217;s time for an upgrade!<\/p>\n\n\n\n<p>Here are some reasons why upgrading your car&#8217;s Big 3 electrical systems is a great idea:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Upgraded Sound Quality<\/h3>\n\n\n\n<p>The most popular reason for the Big 3 Upgrades, is to install an aftermarket high-powered audio system. <\/p>\n\n\n\n<p>If you want to hear upgraded quality music, you need an upgraded system that needs more power than the stock factory-fitted audio system.<\/p>\n\n\n\n<p>You&#8217;ll be able to listen to all of the instruments and vocals clearly and loudly, which is something that can&#8217;t be achieved with just a factory stereo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Faster Battery Charging<\/h3>\n\n\n\n<p>The Big 3 Upgrade improves your battery&#8217;s ability to charge quickly and efficiently. <\/p>\n\n\n\n<p>With the increased power demand the battery can drain quickly so it needs faster and more efficient charging, the alternator with 1\/0 gauge cables makes the battery charge faster.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Low Voltage Problem<\/h3>\n\n\n\n<p>With the Big 3 Upgrade, you can solve all low-voltage problems such as dimming lights. <\/p>\n\n\n\n<p>The efficiency of your car&#8217;s electrical system can improve by up to 10-15%, just with the Big 3 Upgrade, hence improving the low voltage problem.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Quick Engine Start<\/h3>\n\n\n\n<p>With the car&#8217;s improved electric efficiency, the car&#8217;s starter can get the surge in the current spinning the engine with optimum power and starting your car swiftly. <\/p>\n\n\n\n<p> When you upgrade your electrical system, you&#8217;ll notice that turning your engine on and off is much smoother, which is great for those who need fast car access.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Heat Management<\/h3>\n\n\n\n<p>You should upgrade your car&#8217;s electrical system to be more efficient at dissipating heat from the engine compartment. <\/p>\n\n\n\n<p>The more efficiently the system functions, the less heat there will be inside the engine compartment; there won&#8217;t be any unnecessary wear on parts like spark plugs or belts. <\/p>\n\n\n\n<p>It also means there will be less chance of overheating due to excessive friction caused by high temperatures (such as during long trips).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. Improved Safety<\/h3>\n\n\n\n<p>With the Big 3 Upgrade, you get a better gauge wire and good insulation along with fuse and surge protection, which makes your car&#8217;s electric system safe &#8211; it can easily handle large power demands.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">7. Better Fuel Efficiency<\/h3>\n\n\n\n<p>Upgrading your car&#8217;s Big 3 electrical and audio systems will help reduce the gas it uses, saving you money in the long run!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">8. Looks<\/h3>\n\n\n\n<p>Upgrading your car&#8217;s electrical system with a 1\/0 gauge cable looks macho and so much better when you open the hood. <\/p>\n\n\n\n<p>This might be especially important if you are trying to sell your car or trade it in for something else!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Do I Need Other Upgrades With Big 3?<\/h2>\n\n\n\n<p>Once you have done the Big 3 Upgrades and if your audio system still needs more power (which most aftermarket audio systems will)  then you need to upgrade your alternator and\/or battery as well. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">High output alternator<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Car-Alternator-1200x800px.webp\" alt=\"Hyundai Tucson 2016 car alternator and belt\" class=\"wp-image-2792\"\/><figcaption class=\"wp-element-caption\">Hyundai Tucson 2016 car alternator and belt<\/figcaption><\/figure>\n\n\n\n<p>With the Big 3 Upgrade alone the efficiency of the power\/current transmission improves by 10-15% due to the better gauge cables but the factory alternator will not be able to pump out more amps than its specification. <\/p>\n\n\n\n<p>To pump out more amps, you need to upgrade your alternator to something like a 370 amp high-powered alternator to charge your quick-draining battery due to the higher power needs of your audio system.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Battery<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"667\" src=\"https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/09\/High-Amp-Battery-1200x800px-1024x667.webp\" alt=\"High amp car battery\" class=\"wp-image-3071\" srcset=\"https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/09\/High-Amp-Battery-1200x800px-1024x667.webp 1024w, https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/09\/High-Amp-Battery-1200x800px-300x195.webp 300w, https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/09\/High-Amp-Battery-1200x800px-768x500.webp 768w, https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/09\/High-Amp-Battery-1200x800px.webp 1175w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">High amp car battery<\/figcaption><\/figure>\n\n\n\n<p>A <a href=\"https:\/\/www.motorhowto.com\/car-audio-battery\/\" data-type=\"post\" data-id=\"2371\">high amp battery or an even second battery in parallel (Car Audio Battery)<\/a> is required to give that additional power to the audio system. <\/p>\n\n\n\n<p>The high-output alternator will make sure both batteries are kept charged quickly and efficiently.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Big 3 Upgrade Doesn&#8217;t Do?<\/h2>\n\n\n\n<p>The Big 3 Upgrade on its own unfortunately doesn&#8217;t increase the output voltage capability of the alternator. For that, you need to upgrade your factory alternator with an after-market high-output alternator <\/p>\n\n\n\n<p>It also doesn&#8217;t increase the output current capability of the alternator. Again, for that, you need to upgrade your factory alternator r with an after-market high-output alternator <\/p>\n\n\n\n<p>The Big 3 Upgrade will not power your aftermarket audio system that requires substantially more current than the stock alternator.<\/p>\n\n\n\n<p>The Big 3 Upgrades will also not power your car&#8217;s other power-hungry, high-current aftermarket components such as additional high-power lights.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Is The Big 4 Upgrade And How Is It Different?<\/h2>\n\n\n\n<p>With a high 4 upgrade, everything with the Big 3 Upgrade remains the same except you add one more 1\/0 gauge insulated cable to the mix which makes it a Big 4 Upgrade.<\/p>\n\n\n\n<p>With the Big 3 Upgrade, below are the car&#8217;s electrical system cables that are upgraded:<\/p>\n\n\n\n<ul>\n<li>Alternator power to positive battery terminal (Blue, Red, or Green color)<\/li>\n\n\n\n<li>Car body frame ground to negative battery terminal (Black or Grey color)<\/li>\n\n\n\n<li>Engine block ground to negative battery terminal (Black or Grey color)<\/li>\n<\/ul>\n\n\n\n<p>With the Big 4 Upgrade, below are the car&#8217;s electrical system cables that are upgraded:<\/p>\n\n\n\n<ul>\n<li>Alternator power to positive battery terminal (Blue, Red, or Green color)<\/li>\n\n\n\n<li>Alternator ground to negative battery terminal (Black or Grey color)<\/li>\n\n\n\n<li>Car body frame ground to negative battery terminal (Black or Grey color)<\/li>\n\n\n\n<li>Engine block ground to negative battery terminal (Black or Grey color)  OR Ground from the engine block to chassis (Black or Grey color)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Summing It Up<\/h2>\n\n\n\n<p>When you choose a car for the Big 3 Upgrade, you&#8217;re making a decision that will last for years to come. <\/p>\n\n\n\n<p>You&#8217;re choosing a car that will be reliable, comfortable, and safe. <\/p>\n\n\n\n<p>It will definitely allow you to enjoy the power-hungry audio system with max volume without worrying about any failure in the car&#8217;s electrical system.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Whenever you are thinking of upgrading the factory-fitted audio system to get a better, upgraded sound, you also need to think about your car&#8217;s electrical system. Your car&#8217;s factory-fitted electrical system is not designed or capable of handling after-market, high-power audio systems so they also need an upgrade. But what exactly is the car audio [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2997,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"uagb_featured_image_src":{"full":["https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px.webp",1200,800,false],"thumbnail":["https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px-150x150.webp",150,150,true],"medium":["https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px-300x200.webp",300,200,true],"medium_large":["https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px-768x512.webp",768,512,true],"large":["https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px-1024x683.webp",1024,683,true],"1536x1536":["https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px.webp",1200,800,false],"2048x2048":["https:\/\/www.motorhowto.com\/wp-content\/uploads\/2022\/07\/Red-Battery-Positive-Cable-1200x800px.webp",1200,800,false]},"uagb_author_info":{"display_name":"John Mailum","author_link":"https:\/\/www.motorhowto.com\/author\/john-mailum\/"},"uagb_comment_info":0,"uagb_excerpt":"Whenever you are thinking of upgrading the factory-fitted audio system to get a better, upgraded sound, you also need to think about your car&#8217;s electrical system. Your car&#8217;s factory-fitted electrical system is not designed or capable of handling after-market, high-power audio systems so they also need an upgrade. But what exactly is the car audio&hellip;","_links":{"self":[{"href":"https:\/\/www.motorhowto.com\/wp-json\/wp\/v2\/posts\/2760"}],"collection":[{"href":"https:\/\/www.motorhowto.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.motorhowto.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.motorhowto.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.motorhowto.com\/wp-json\/wp\/v2\/comments?post=2760"}],"version-history":[{"count":0,"href":"https:\/\/www.motorhowto.com\/wp-json\/wp\/v2\/posts\/2760\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.motorhowto.com\/wp-json\/wp\/v2\/media\/2997"}],"wp:attachment":[{"href":"https:\/\/www.motorhowto.com\/wp-json\/wp\/v2\/media?parent=2760"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.motorhowto.com\/wp-json\/wp\/v2\/categories?post=2760"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.motorhowto.com\/wp-json\/wp\/v2\/tags?post=2760"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}