Not to rub salt in the wounds, but do you think it is possible that all the diagnostic equipment mounted on the dash could be part of the reason a thief noticed your car? The reason we are hiding it because our cars are not always parked in plan sight. The car is flashy enough as it is. If anything, I would be worried that some ricer could come along and rip it out when the car is unattended and mount it in their SI.
Just a thought on the theft. Don't know if there was any special circumstances.

 

Theft is also a great concern of mine. That's why the unit holder is mounted on velcro...can be taken off and hidden when parked on public street. When I had it on the radio door, I had a cloth cover that I can slip on the radio door.

 

I've finally restored the photos from the gauge install thread, if that's any help. If somebody can come up with the dimensions of the unit, I can help with the thinking about the door mount. Herer's the link: https://www.s2ki.com/forums/showthread.php?...?threadid=35659

I have a few spare doors to experiment on, and if the size is right, I'm sure it can be done.

I'm not sure I'd do this with a Dremel tool. It's a rather crude solution for the door work. I'd use fine hobby saws -- the kind I used when I was big-time into scale model railroading.