sorry if this is already posted somewhere.

I was installing a cd player the other day on my 92 tercel. upon pulling open the dash I noticed the factory wiring harness was half-way cut off. when I bought the reverse harness and started to install all the colors were different, lol. I got everything figured out and working right accept for the power constant for the radio. does anyone happen to know which color wire i would need? The old radio in also wasn't hooked up into the constant. It isn't the most importantthing, but kind of annoying to reset all settings everytime i turn the car on.

thank you very much, i've searched on here and online and can't find anything