Where is the auxillary plug in for a dual xdm7510 stereo?

Head Unit Wiring for chevrolet blazer and dual XDM7510?

• i just recently purchased a used dual XDM7510 from a friend,ive got the schematic for the stereo itself,and ive also found a schematic for my 1999 chevrolet blazer, ive wired everything properly but i do have 4 extra wires coming from the blazer and one from the radio, when i plug it in,the lights on the swiveling plate work and you can open it and put a CD in it but no sound works and the screen doesnt light up,can you help me?

• Answer:

  my answer is try to check it out first on auto repair shop...