As you can see in the pics each USB port has the ability to pull 4 amps each so that power adds up quick. Plus I need a fused port for my Ham radio. SO I decided to buy a 6 fuse fuseblock on amazon and found a perfect spot under the drivers side dash, screwd it directly to the metal brace that was under the dash. I ran some 8awg power and ground wire from under the hood and thru a relay mounted on firewall to provide the power. So each USB and my radio have their own fuse.
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