Originally Posted by FabianoGK
Did you need any adaptor to get your Alpine headunid in place ?
An "installation" adapter is not required for any DIN capable head unit. You do still need a few other items to install an aftermarket head unit:
Universal OEM DIN Tool Pair (Crutchfield P/N 120869001)
Scosche VW01B Wiring Harness (Best Buy)
Metra Antenna Works 40-EU10 Antenna Adapter Cable (Best Buy
--OR--
If you want to get it all from Crutchfield:
P/N 120869001 Universal OEM DIN Tool Pair
P/N 12040EU10 Euro antenna adapter
P/N 120701784 VW Wire harness (switch the red and yellow wires when connecting the VW harness to the new head unit harness)