I am about to install a Hitch and ball for towing a small boat with my 1991 300e automatic with standard drive train.

Is there anything "funny" about my car's wiring that would preclude using a generic wiring harness from Pepboys? The trailor has left and right stop and turn signals, along with 2 small running lights on each side.

Any insight much appriciated.

------------------
1991 300e