I'm sure you got it by now, but in case anyone stumbles on this and needs the info.... here you go.
1990-93 Honda Accord Stereo Wiring
Constant 12V+ White/Yellow
Switched 12V+ Yellow/Red
Ground Black
Illumination Red/Black
Dimmer n/a
Antenna Trigger Yellow/White
Antenna Left Rear
Front Speakers 6 1/2" Doors
Left Front (+) Blue/Green
Left Front (-) Gray/Black
Right Front (+) Red/Green
Right Front (-) Brown/Black
Rear Speakers 6 1/2" Rear Deck
Left Rear (+) Blue/Yellow
Left Rear (-) Gray/White
Right Rear (+) Red/Yellow
Right Rear (-) Brown/White