try using the search!
Welcome to the site. I was able to hardwire my V1 (see the pics in the thread above), but it's not in the mirror. I ran the power/telephone cable up around the inside of the windshield, down to the passenger footwell where there is a fuse box. I had previously purchased a fuse tap from AutoZone, where I could just plug into one of the spare jacks and then ground it to the frame. Took me about an hour, but was not terribly difficult to do.