I'm hooking up a system for a friend. He's got a couple 12's going in a older Buick. I know it's a noob question, but how do I get the hot wire through the back seat and where should I connect the ground?
ground it somewehre in the trunk if you can on a metal to metal location like body and bolt but makes sure it gets a good metal location gots to sanded if its not, and the power just run it through ur firewall through ur trims in the car through till the trunk or run it underneath SECURE and drill through.