Wireless back up cameras haven't gotten very good comments in the past when used with TC's. Electronic stuff seems to improve all the time so who is having success with wireless these days?
I installed a wireless system first, but the result wasn't what I was expecting, so I removed it again and installed a wired system. Very glad that I did!!
You have to plug in the umbilical cord anyway, so what's the problem with plugging in an extra cable...