The heated mirrors turn on when you turn on the rear defogger. I found out a few months ago when I had to replace the switch. It works pretty good too, I use it every morning:) Brian 86 16v -- To unsubscribe, send "unsubscribe scirocco-l" to majordomo@scirocco.org. If you experience other problems, email: scirocco-l-probs@scirocco.org