Just installed a D3 with ipod and sirrius in a mk4 jetta and lovin it, Big thanks to the people with the custom backgrounds espically the fast logo screen and the people with the posts on the bypass mods. Had one issue with the bypass, after changing the wire and grounding everything, the unit still locked out while driving. After investingating the mute wire had pulled out slightly while inserting the plug, maybe this is the problem some people are having with the mod. Thought I would thow this out there.