Thanks Pete, thanks Wammers. Will do that with my trusty digital voltage reader. I am expecting the mirrors to be burned out, but who know's for sure. Plenty people don't bother with mirrors, that much is obvious whilst driving, but I like to check all the time, more so if towing. We get cold up here and wet and when it's cold & wet and you can't see in the mirror's, it's damn annoying!