I went with the 562 unit. Only complaint is you cant see the display in the sun. Here is the radio and the adapters you will also need.
Kmr-D562bt $117.55 shipped
Kenwood Kmr-D562bt Cd Stereo With Bluetooth
Scosche harness adapter $4.98 shipped
Amazon.com: Buying Choices: Scosche VW01B Power/Speaker Connector for 1986-Up Volkswagen
Metra antennae adapter $4.39 shipped
Amazon.com: Buying Choices: Metra 40-EU10 VW /BMW/Euro Car to Male Motorola Vehicle Antenna Adapter