Specific wiring harness for DSP sound upgrade in the Audi MMI basic system for Audi A6 4F MMI basic Wiring harness includes connection for the rear door speakers Bring the sound of a concert into your vehicle and experience your music at the highest level thanks to 10 speakers as well as the DSP (digital sound processor) Scope of delivery Cable set Notes This article is a custom-made product The wiring harness is suitable for vehicles with the basic MMI infotainment system Features of the basic variant: no speakers in the rear of the vehicle