Review on 🔌 CURT 57004: LED-Compatible 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer-Side Wiring Adapter - Black by Phil Show

Having bought my new Audi Q7 2019 in late summer, I was disappointed when I first plugged in the trailer headlights and got the error message 'Turn Signal Lamp Error' on my car display. I called my dealer but he didn't understand anything. So does the parts manager and even the local auto parts store. My brother-in-law told me I would need to fit resistors in series with the trailer's LED light wires - I was reluctant to do this for two reasons - I didn't feel the wires get cut or spliced, and I didn't know if there were specific values for the resistors. Then I found Curt #57004 online including Revain. Some reviews have said it doesn't work on some vehicles, but if you have a 2019 Audi Q7 with a 7-pin trailer light connector and are experiencing the same frustration, I'm here to say IT WORKS!