best cheap Backup camera solution for old car?

[evident]

I'm looking for a cheap and easy to install backup camera solution for a 2003 infiniti g35. Basically i'm getting rid of it in less than a year so I don't really want the solution to be integrated into the dash, etc... Car comes with an oem navigation system, but integrating into that seems extremely costly and too complex for me. getting aftermarket head unit is out of the question, too much $$.

what's important is that it's easy install and that the cam is easy to mount. I won't have access to many special tools and what have you. I may not be able to remove one bolt of the license plate either.

I see a lot of wireless solutions on amazon but almost all of them get mixed reviews. Anyone have experience with particular models/brands that are found on amazon and could recommend?

thanks

 

[MasterAndCommander]

I have this one in my sedan - http://a.co/fDt9v4e for over a year and it's been working out pretty well. I didn't have to use any special tools to mount or drill any holes in my car.