I bought this to connect to my 2017 Chrysler minivan. The previous one was the $70 Curt brand, which lasted a year before dying (there was a box). I plugged this in and all the lights on my trailer flashed on and off for a moment except for the driver's side tail light. I bought the best $60 suspension from E-Trailer (not Curt) and installed it exactly like that, grounded it to the same spot as this Hopkins, and it works fine. My trailer is a Venture 2200 with a 17 foot boat.