I am running 4awg wire to my car's 400watt amplifier. The wire is running about 10 feet from the circuit breaker that it is connected to. The circuit breaker (as of now) is connected to the car's battery via about 18 inches of 6awg wire.
Should I be worried about using 6awg wire between the battery and the breaker - or since it's so short will it be ok? All of the wire I'm using is pure copper welding cable from TEMCo, not the aluminum stuff you get in Amazon and eBay kits. That gives me peace of mind but I want to make sure that this is not a bad way to set up the system.
I know that the amp is only going to use about 33amps at max, but I want to be sure that it won't cause any problem in the long run... (Pun intended)