70's 8 track radio wiring questions...

planning to use a 70's 8 track player in a custom application... can anyone help me with what color does what? Which one is for the light ? I know the red one is for power and the ground bolts to the bracket. I don't want to burn it up. Thanks

this is the radio....

Red is power, orange is power for radio light, yellow/white is for rear speakers (thinking yellow is left), green/purple are the fronts.

pic