How do you run multiple amps? Do you just add more connections off the battery terminal or what? I'm talking like 4ch + 2ch for a sub, i want to be able to get two smaller amps to fit in my storage bins.

 

Yeah, just run additional power straight from the battery to the amps. Make sure your batt/alternator/wire gauge are all big enough for the added load to your system. And you will have to pull/bypass the separate amp in the dash (passengers side for a coupe) for the door speakers if you are going with an aftermarket headunit (which I assume you are).