Perfect solution if you don’t want to mount a permanent camera on the dash. Got him a mount for his unused CD player with a magnet. Slaps it on the mount, pulls up the Bluetooth app and he’s got full view behind him family 40 feet and wide enough to see more than he needs.
https://www.amazon.com/4UCAM-Backup-Camera-iPhone-Android/dp/B00HWB91VY

