Audio 5
From Wiki
1990-93 Toyota Celica Stereo Wiring Constant 12V+ Blue/Yellow Switched 12V+ Gray Ground Brown Illumination Green Dimmer n/a Antenna Trigger Black/Red Antenna Left Rear Front Speakers 4" Dash Left Front (+) Pink Left Front (-) Purple Right Front (+) Light Green Right Front (-) Blue Rear Speakers 5 1/4" Side Panels Left Rear (+) Black Left Rear (-) Yellow Right Rear (+) Red Right Rear (-) White