Wiring diagram

So hi to all again! Don't know where to post this thread so I'll do it here. I have in plan to put mirror heating pads and want to connect it to switch of rear defogger and when it's tuned on that work rear defogger and heating mirror in the same time :). So now I want to know does anybody know what wire is that exactly? Tried to find it but didn't succeded.

P.s. It's Almera N16 facelift 2003.
 
Top Bottom