Hey Dan, thanks for reaching out!
I really like the Rear View Safety Universal Mirror Monitor # RVS-619N since it installs in the rearview mirror location and gives you a full 7" color screen. This comes with standard camera connectors, but I'm also adding a photo from the instructions to show what the wiring configuration is if your connector doesn't match and you need to hardwire things.
Please note that this is only a good option if you don't have a standard rearview mirror as this... view full answer...