I used a EMP winch mounting plate & their receiver kit for my 2011 500. No issues on the install. I made a plate to mount the winch on so I can switch it from the front to rear. I used Warn's rear winch mount wiring kit.
If someone was thinking of doing the same I would skip this kit since I had to rework it for the midsize. Take measurements & get an automotive electrical shop to cut the cables to length, crimp ring terminals & quick connects.