I purchased the MOPAR camera kit for a Commander off EBay for $125, and it mounted to my Compass almost exactly as the Commander instructions outline.
The primary challenge was snaking the wires through the "snake" pictured at the bottom of post #4. Wire hangers can be a wonderful tool.
The kit comes with a small monitor that mounts at the bottom of the A pillar. If ever I replace my headunit with a 7' monitor type down the road, it's now just an unplug and plug exercise.
The kit had a bracket for the camera that mounts behind the top of the license plate. Very clever.
2010 Compass LTD White on black.
Added UConnect w/IPhone cable, front/rear MOPAR mud flaps, K&N drop in air filter, hardmount gooseneck cell phone station, MOPAR cargo liner, MOPAR cargo net, remote mount ESCORT Radar/Laser Detector w/Voltmeter readout, upgraded speakers, added stock mount Tweeters & sub-woofer, MOPAR Back-up Camera/monitor, front lower grill, interior wood accents