Genuine Audi TT, TTS, and TTRS (2015 and later) aluminum roof carrier with keys and tools. - Type: Roof carrier - Included: Keys, installation tools Thank you for viewing. I used this on my Audi TT for about six months and then stored it indoors. The instruction manual is not included, but there are pins under the rubber seals on the top of the doors. You install the carrier base into the recesses and connect it by tightening the hex screws on the carrier base.