I'm having same issue with my Viofo A129 Duo.
My camera appears to work ok. I installed it with the wiring kit. When its powered up I have to get right next to my car to use the remote start or lock/unlock functions. While unplugged these functions work from many yards away.
While driving with the camera on my TPMS sensors stop reading in the vehicle and I get an alarm. When I unplug power from the camera the readings come back and stay on. Is it possible that my camera is defective creating an unusual amount of interference preventing these features of my vehicle from working?
I'm driving a 2020 Silverado Trail Boss LT. The front camera is mounted on the passenger side of the mirror mount behind the mirror. The rear camera is mounted to the rear glass on the passenger side of center. The Cam cable is routed from front, across liner top down the A-piller (behind the air bag) and into the fuse panel (The is where the 3 wire kit is terminated) The cam cable continues down to the rocker panel wiring channel along the passenger side and back to the rear window.
I'll try unplugging just the rear cam on the way home from work today. I really want to get this thing working.