Rear view cameras

I have found one very helpful, especially when passing lorries on the motorway. Some monitors designed to be located on an interior mirror are highly reflective, which may cause problems. These are sold as reversing cameras. I found interference in a radio signal and hard wired it. Maplins have two pin sockets with a screw locking to keep it all together on the road. I see no reason why the spare terminal on the 13 pin plug should not be used to connect. If you go ahead do let us know how you get on.

If you Google the topic there are a number of threads on this and other forum as well as many reviews on line.

Try these sites for a start.

https://www.parkingcameras.com/store/home.php

http://shop.reversingcamerasuk.com

If you go wireless ensure that you get a digital system and not one of the cheap Bluetooth ones from eBay. The cheap ones are very prone to interference.

I use my GoPro all the time in the rear window, great for making sure you are past truck before pulling in, if they don't flash you.

I didn't know you could use a GoPro like that. Is that WiFi or Bluetooth to your phone?

Yes,  wifi. 

It's far from perfect to be honest,  as the image is reversed,  but as I already had one and it is more than adequate to check your past trucks or monitor tail gaters or watch the hedge as you back into the pitch and as you can start the recording from the phone,  if someone is being an idiot behind,  you can record them for evidence!