So I'm in the process of installing my Amp and Sub, which isnt working yet <post here> and went to drive somewhere during the night and my Head Unit isn't lighting up.

It works perfectly fine, CD, AM, FM, Sat, volume controls, everything, but the LEDs arent lighting up. Anyone know what the problem could be? Any specific wire in the back that I should look for> Maybe the one that would control the dimming (if there is one)?

Edit: A bunch of searches have revealed that the illumination wire is the green one. Im going to check that. If Anyone can think of another possible cause please let me know.