I realize the tradeoffs to a lower mounting - the higher the better. But, I didn't like the looks of it next to the rearview mirror so I gave up some alert distance for aesthetics. That's a good idea testing with a fixed radar gun. I'll check that out.

As far as the wiring goes, I don't remember the exact wire I connected to but it was the power to the Homelink module - only on when the key is on. I believe the wire was pink. I'll look at my shop manual and see if I can verify that. I took lots of photos of the stereo/soundproofing installation but couldn't find one of the V1 install.