I have one RD that I share between my car and my truck. The little wire above the mirror is for my remote start antenna.
I have 2- Escort Live direct wire modules. (That's the blue thing on top of my mirror). 2 Blendmounts. 2-Invisicord taps.
I won't get into the Escort Live deal. It's not needed and lots of info on the web. I like it and it's an option.
When you use your meter, there are 2 hot wires when you turn the ignition to on. One is constant 12V power. The other is controlled by the Can-bus system.
If you tap into the Can-bus one, as soon as you plug in an accessory to it, the voltage will drop to 2.5 volts.
I just did the one in my car 3 weeks ago. That's how I found out about the Can-bus one. It drove me nuts. I had no one to help out and figured it out on my own.
Try both of them on Invisicords site. I think I tried to first one and it worked no problem. If not, try the second one. You won't hurt anything.
Take the mirror off and you can remove the harness that goes into the mirror to make it easier. It's a ***** to take out, but it does come out. I didn't have to on my truck, but did on my car. (Lack of working room due to the mirror position and windshield slant)
It's a clean install. Leaves my other power points free. No wires across my radio or vents. It's keyed so when I shut off, so does the RD.
If I remember on my car, the power was the top right one upper row and the ground was the 2nd one from the right on the bottom row. (Standing in front of the car looking at the back of the mirror when installed). I can't remember my truck since I did it in December.
If you have the powered mirror, it will work. Just remember there's 2 hot. Just using the meter will trick you to thinking it's good until you plug in a load.
