Honestly? Look for a local supply company that deals in surveillance. They can help you design precisely what you need though it may cost a pretty penny. Lots of options on the market today for mobile recording.
Or make your own wiring harness and access 12v+ by tapping a 12v constant circuit...something like the dome lights circuit. And don't forget to add a fuse!
There definitely are a lot of options!
Problem is that most of the surveillance co’s carry static, installed units. The mobile units are mostly dashcam/back-up cams/close range cams without a stand-alone power pack.
I need to be able to switch from proprietary cameras to cameras with big zooms to tilt/pan/zoom cameras, depending on the individual case/topography. AND to be able to switch it from vehicle to vehicle easily, still maintaining its stealth.
So, what I was hoping for was some information that fits those requirements. It’ll probably be something designed by me, cobbling together pieces and parts from disparate systems.
Thanks for the response, though.