The fornt USB is only used for charging. The functions of Carplay, Android auto and mirrorlink, and playing MP3 songs, The all need to via the rear USB. More beautiful and convenient.
If any details are not perfect enough, please give me some tolerance and understanding for DIY. I guarantee that the head unit works well, Do my best as well as I can.
Please tell me whether I need package A or package B before payment. Package A will be shipment by default.
Package A： USB botton switch socket，Fits Jetta，MK5, MK6, Bettle Caddy, .
Package B：USB & AUX socket. Fits Passat, EOS, Tiguan, Touran, Seat