The CTKAU21 is a full install kit designed especially for use on the 2008 to 2016 Audi Q5. The kit comes with all you need to install an aftermarket head unit while retaining the use of your multifunctional steering wheel controls and phone functionality. This includes an Infodapter interface, an antenna adapter, a universal patch lead, along with a double-DIN fascia adapter finished in matte black to retain the original vehicles aesthetics and includes all of the mounting accessories for fitment. The MMI kit also comes with a button relocation panel allowing you to relocate the buttons into the ashtray section of the dashboard. To be used in MMI vehicles with MOST amplification.