Well the only thing that I have interacted with pertaining o the wires are the wires in the trunk... One was the Power wire from battery, the Black Ground Wire, and The Blue Remote Wire. I havent touched to Head unit or anything like that. The wiring was already done when I bought the car. And I even tested the system to see if another amp and sub would work from the prior connections. Everything worked fine. Then I cut to car off, came back 15 minutes later, and from that point on, I have NO SOUND coming from any speaker. Called the dealer, and they said they're not sure what it could be, but it should still be under the warranty. So now I get to geal with them. lol lol Good Luck to me. Feel me???