Re: Trailer Tow Wire Harness
Alot of the aftermarket trailer adapaters have an integrated module that is plug and play. I can't speak for all of the aftermarket adapters, but I tend to see quite a few failures from these.
IMO, the factory harness is a more stable connection. The splicing isn't hard if you are handy with electrical work. After all connections are made, the trailer lighting circuit must be activated in the TIPM via Chrysler's StarScan.