I have a Garmin Dashcam 55 mounted in my other car (Toyota hilux) with the standard mounting kit and hardwired into the acc circuit.

The Garmin 55 is a fabulous little unit. Using a 64gb microSD card, it records about 15 to 20hr of footage, which is great for recording my overlanding trips here in Australia.

I've looked at other dashcams but I think I'll be getting another Garmin 55 for my E53