Hey guys, my question is i got a 2004 Pontiac Vibe and a Pioneer AVH-P3400BH deck. I purchased the after market harness to solder in with the pioneer deck. Everything checked out fine witht he wires connecting minus the fact i had no sound

. Me and a friend have been going at it for 2 days now and cant figure out why there isn't any sound the system is wired up correctly. Any Ideas?