autosportsunltd
10+ year member
Member
Ok i am installing a axxes 2 channel line out converter on a 2004 GMC sierra. the wiring diagram i have says that the rear speakers are: LR brn - Yellow +, RR dk blue - Lt blue +. the only wires i can find that match are running to the heater controls, are they the right ones? BTW it has factory Bose
