I just replaced a Voyager black and white system with a Rear View Safety 7" LCD Color Backup Camera System with Audio that I found on Amazon for $219 including free shipping. Here is the link.
http://www.amazon.com/Rear-View-Safety-Backup-Camera/dp/B002GM5GKO/ref=sr_1_sc_1?ie=UTF8&qid=1399347927&sr=8-1-spell&keywords=rear+viewsafety+RV+camera
It's not wireless, but I used the cable that was already in my RV. It was a 4-wire cable and the new Rear View Safety system came with a 5-wire cable.
I contacted their customer service and found out that I didn't need the green wire that was only for switching from mirror to non-mirror.
I cut the connectors off of both the new cable and the existing cable and soldered the new connectors onto the old cable and now everything works great.
It sure beats the high price of a wireless system.
Jerry Minchey
