Break light problem

Ok, well i posted this question before, but ill go into a little more detail on it.
When ever i turn on my lights on my 95 Corolla , my break lights turn on, even the one in the back window (that shouldnt be on unless i turn on breaks, should it?)
when i apply the breaks, there is a tiny difference, you cant even tell unless you are staring at them from a few feet away.

I looked at the fuses and they look good.
A friend who knows quite a bit about cars told me that there could be a short from when circuit city installed my stereo, and he told me to get a schematic, any ideas where i can get one, or if you have any other ideas, it would be great

thanks

PM me An E-mail and I'll send along the wiring PDF.
An Adobe file with the wiring Schematic.

Outthere Too..

well to tell u the truth u friend was right it is a short , i think that when they installed ur radio it knocked a wire off or cut into it thinkin it was the power, but wiring diagram is only gonna show u so much , i mean u will see where the possiblities are but the way is to test them wit a tester