I already have the Edge CTS in my truck. I got a license plate camera from Amazon for about $30. Pulled the RCA cable to the cab to connect to the back of the CTS unit, and pick up power from the reverse lights (pulled the driver's taillight and tapped the wire there).
Works great and I hit the trailers on the first try every time!
2005 2500 Cummins/48RE/3.73, QCLB, 4wd, BigHorn, Edge Juice w/ CTS + Turbo Timer,Transgo Shift Kit ISSPro Oil and LP pressure gauges, GDP 20/2 filters, Custom Diesel Steering Box Brace
'10 Forest River Shockwave Toy Hauler 21'
Honda EU3000I Genny