Hi.
Sorry for replying to you so late.
For Volkswagen in 2008, there is a battery drain problem, you need to buy a CANBUS simulator or gateway.
If you have an 8-button multifunction steering wheel, you must install a CANBUS simulator. Otherwise, the RCD330 plus cannot be controlled by MFSW.
CANBUS has two functions to solve the battery drainage problem and the control problem of the 8-button multi-function steering wheel.
For the unit, you can choose one from the links below.
MFSW Control Canbus gateway Simulator RCD330 plus For VW Jetta MK5 Passat
Noname 187B
1.Standard Original Edition
2.Standard original unit + rear USB.
3.Standard original unit + rear USB+ wireless carplay dongle
Genuine Not fake RCD330 PLUS RCD340G Noname 187B For Jetta Golf Passart Tiguan Polo 6R
Genuine Not fake Noname 187B Front Rear USB V4.0 AndroidAuto RCD330 Plus Jetta MK5 MK6 Passat Polo6R
https://www.rcd330.com/product/noname-187b-rear-usb-wireless-carplay/