Audi A4 8e Cruise Control Retrofit Kit – Inc. Steering Column Control Module + Squib Ring + Indicator Stalk + Wiper Stalk + Cruise Control Stalk. This is everything you need to retrofit cruise control to your Audi A4. Not only will you be upgrading to cruise control, but this kit also features the trip computer (unlike some others). I have taped up the slip ring to ensure it did not move during removal/transit/installation – DO NOT MOVE THIS DURING FITMENT.