With wireless ones you would have a trancceiver with RCA out.. so you have to pick a double din car deck with RCA video input.
Since you still need to run a 12V wire to power the wirless transceiver / camera setup.. I would suggest you forgo the wireless setup and go for wired.. Security is not much of an issue, just an extra point of failure that can be annoying.
If you want to populate your car with more than 1 camera.. consider this:
Products Detail