oem amp bypass, 03' GMC Sierra

     Audio/Mobile Video                                              WIRE          COLOR          POLARITY          LOCATION           Battery          ORANGE          (+)          RADIO HARNESS           Accesory          (CLASS 2 DATA)                     THE RADIO HARNESS DOES NOT PROVIDE A SWITCHED POWER SOURCE. RUN A WIRE TO THE FUSEBOX FOR SWITCHED POWER. THE ACCESSORY TURN-ON AND AMPLIFIER TURN-ON ARE CONTROLLED BY THE CLASS 2 SERIAL NETWORK.           Ground          BLACK/ WHITE          (-)          RADIO HARNESS           Illumination          BROWN          (+)          RADIO HARNESS           Dimmer          GRAY          (+)          RADIO HARNESS           Amp Turn On          PINK          (+)          RADIO HARNESS           LF Speaker (+)          TAN           LF Speaker (-)          GRAY           RF Speaker (+)          LIGHT GREEN           RF Speaker (-)          DARK GREEN           LR Speaker (+)          BROWN           LR Speaker (-)          YELLOW           RR Speaker (+)          DARK BLUE           RR Speaker (-)          LIGHT BLUE           Amp Location          UNDER CENTER CONSOLE           Steering Cntrls          OPTIONAL                     THIS VEHICLE MAY BE EQUIPPED WITH OPTIONAL ONSTAR® TELEMATICS EQUIPMENT. USE AN APPROPRIATE INTEGRATION HARNESS OR INSTALLATION PROCEDURE TO ENSURE PROPER FUNCTION OF THIS EQUIPMENT.           Speed Cntrl          OPTIONAL           Radio Security          YES just run speaker wires from your aftermarket deck to the amp and wire em up to the output side.....Im not 100%,but I think that the speakers in the doors are 1ohm and all the rest are 4ohm....so you should be able to wire the dash and door together in series and get 5ohms. goog luck rtfm