dunstopnow

Where to buy them? Is this an easy DIY?

lockedlex

See this thread, including where I did it to my 350C. Ultimately, I just bypassed using any OEM switch and used a pretty close to the OEM switch reverse polarity rocker switch. I got the mirror folding motor parts from the UK (pretty much the only place you'll find it). I did have to modify the internal structure of my mirror assembly to fit my motors (I believe since my car was newer). Also running new wiring was a pain. Overall, I'd probably do it again, but it did take 15+ hours of trial and error.

DIY Power / Auto Folding Mirrors - ClubLexus - Lexus Forum Discussion