The manufacturer info says it best:
General information:
M-link 1 is the first of the blitzsafe M-link iPod interfaces. This interface connects to you CD Changer port and gives you a direct CD quality audio connection between your iPod and car radio. The interface will charge ou ipod while the car is on and for 20 minutes after you turn off the car. All through one quick connection to the data port on the bottom of your ipod.
Notes:
-- Works with the Dension Dock Cradle (not required)
--Connects to the CD changer port behind your radio.
--Will work with all in-dash CD players and in-dash CD Changers.
--Will NOT work with trunk mount CD Changers. Must be disconnected.
--Will NOT work with the VW phatbox.
--2002 model year vehicles MUST have the Double-Din one piece
--Cassette & CD radio.
--Will NOT work with casette only radios.
--Will work with Monsoon and non Mansoon radios
--In most cases you will need radio removal tools to take out the radio. (you can borrow these from me)
A few words from me:
Again, this is a DOCK CONNECTOR interface, will not work with any non docking iPods...this unit works flawlessly, has a couple of small marks on the white docking cable that do not effect use, and was a result of my install. Installs in minutes! This will work on all 2002+ VW's with Double DIN radios. This will NOT allow control of the iPod through the deck, that setup costs 3X this! Pics upon request
Asking $80can!
Alex