Recommended Trailer Wiring Harness for 2011 Audi S4

Published 04/25/2019

Products Featured in This Question

ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit

(522)

$192.69

Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit

(53)

$84.64

Question:

Thanks for your reply. I was looking at item number C56190KIT. It has the same current rating as the part you recommended. The only feature it doesn’t seem to have is PWM capability. Do you know if my car requires PWM?

asked by: Ryan

Expert Reply:

There is not a harness that plugs into your factory wiring without splicing so I recommend the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit # 119250KIT. This will have the amperage you need whether you pull a trailer with incandescent or LED lights. I've attached a video of this installation on a Q7 to assist with the installation. I've also attached the installation instructions to help.

expert reply by: Jason S

Ryan

4/25/2019

Thanks for your reply. I was looking at item number C56190. It has the same current rating as the part you recommended. The only feature it doesn’t seem to have is PWM capability. Do you know if my car requires PWM? I don’t think I will need the install kit.

Jason S.

4/25/2019

The Curt # C56190 as you stated will work for you if you don't need the kit. It is compatible with Pulse Width Modulation (digital signal) if your vehicle does have it. I did a little research but can't confirm if it has PWM or not. Either way this harness will work since you already have the wire and connectors that would be included in the kit version # C56190KIT.