1983 Radio wiring

[Combat Chuck]

I'm in the process of moving my JVC head unit and speakers from my Olds' over to The Mule and ran into a slight problem. There are three connectors with bundles of wires for the now-nonexistent OEM radio, two smaller ones with bluish connectors and mostly blue wires which I've deduced to be the stock speaker wires, but the third needs to surrender its secrets to me.

It has four mostly green wires: one green/black, one green/blue, one green/red one green/yellow.
I know from past installs that one is power, one is ground, one is ACC. power, and one is dimmer, but does anyone know which ones specifically?

 

[2ndGenToyotaFan]

1984-86 Toyota Pickup Stereo Wiring
Constant 12V+ Blue/Yellow
Switched 12V+ Gray
Ground Brown
Illumination Green
Dimmer n/a
Antenna Right Front
Front Speakers 4" Dash
Left Front (+) Pink
Left Front (-) Purple
Right Front (+) Green
Right Front (-) Blue
Rear Speakers 5 1/4" Side Panels
Left Rear (+) Black
Left Rear (-) Yellow
Right Rear (+) Red
Right Rear (-) White

If that doesn't seem to match, try some other models here: Toyota Wiring - Page 3

 

[H8PVMNT]

Just get a test light and find the constant hot, ignition switched hot and run a new ground and speaker wires. Tape off and bundle up the leftovers... done!

 

[liljlandon]

Just get a test light and find the constant hot, ignition switched hot and run a new ground and speaker wires. Tape off and bundle up the leftovers... done!

Yep, thats what i would do!