i'm installing a radio into my rx330 2004,need help with radio harness plug,do my have and factory amp in it,it just a regular radio system with no navi odadiodvd player,it's just and 8 speaker radio system,need help

from what i could decipher from what you wrote i think you are asking for wire colors....

Radio 12v - blue/black - found at radio harness
Radio Ground - brown - found at radio harness
Radio Ignition - gray - found at radio harness
Radio Illumination - green - found at radio harness
Factory Amp Turn-on N/A
Power Antenna - orange - found at radio harness
LF Speaker +/- (brown) / (red/yellow) - amp under passenger side rear seat
RF Speaker +/- (purple) / (pink) - amp under passenger side rear seat
LR Speaker +/- (red) / (gray) - amp under passenger side rear seat
RR Speaker +/- (red/yellow) / (blue) - amp under passenger side rear seat

do i have to remove the rear passenger seat to get to it,i mean the wires,because i'm planning on running the wires from the head unit to those wires from the amp

it would probably be easier if you did.

I got that info off of Directechs which is a great resource for us in the car audio industry

Please tell me. these fronts are the dash speakers or the door speakers. And what are the sqwaques.