Hi Andy, I bought the product below from amazon £55. Its a dash cam that sits on top of you rear view mirror and comes with a reverse cam. It records front and rear footage, so useful if you have an accident. Very easy to install, the cable supplied is long to go through the van and out to the rear number plate area. I screwed a hole on the plastic mount for the rear licence plate light, then ran the cable through it - no drilling through the metal work
There are cheaper / more expensive versions, I'm happy with the picture image and find it useful when reversing in car parks etc.
TOGUARD Mirror Dash Cam 1080P Dual Lens 7 Inch IPS Touch Screen, Dash Cam Front and Rear View Waterproof Backup Camera 170°Wide Angle with G-sensor Parking Monitor Motion Detection https://www.amazon.co.uk/dp/B07DFYT8VN/ref=cm_sw_r_cp_apa_i_0LwgCbACHFS8V
There are cheaper / more expensive versions, I'm happy with the picture image and find it useful when reversing in car parks etc.
TOGUARD Mirror Dash Cam 1080P Dual Lens 7 Inch IPS Touch Screen, Dash Cam Front and Rear View Waterproof Backup Camera 170°Wide Angle with G-sensor Parking Monitor Motion Detection https://www.amazon.co.uk/dp/B07DFYT8VN/ref=cm_sw_r_cp_apa_i_0LwgCbACHFS8V