so I don't know anyone else that uses this system.

It isn't vibration since the car isn't moving. it dies shortly after start up, and I can do it just accessory so engine isn't even running.

I might know someone with a flir gun, so I might give that a try, but the short lived record time doesn't seem like it could overheat that quickly, but who knows.
the second did last longer than the first. 6 month to 11 months. but who knows what is going bad.