Buy a license plate-mounted backup camera and transplant the camera into this mount that allows you to put it wherever you want. I mounted mine directly above my van's rear window.

You will need:

• (1) license plate-mounted backup camera, I really like this one: https://www.amazon.com/gp/product/B074KZSVD6/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&tag=reeall-20&linkId=6971060b14741086ca59f957cf9a14b2&language=en_US
• (2) Sheet metal screw, American #10 size, flanged hex head, at least 5/8" long
• (4) M3 socket-head or button-head cap screw, 10 mm length
• (4) M3 plain hex nut (not nyloc)
• Optional: RTV silicone to seal the mount against the car and keep moisture out

Also needed:

• A drill and an assortment of drill bits
• The ability to be brave enough to drill holes in your car
• Wire cutters, wire strippers, soldering equipment - you'll have to cut the camera's cable, feed it through a hole you drill in your car, and then re-solder the wires back together on the inside

I included a rough model of the backup camera I used so that you can check yours and confirm that it's the same dimensions.