I am in the midst of this swap on my 2002 Jetta VR6 12v wagon.
However, I am stumped with the cruise control hookup at the Motronic ECM. I've got the black and yellow wire at the TCU with continuity down to the clutch switch, but the yellow with red wire at the TCU has no continuity to the ECM wire of the same color.
And I am not sure how to identify pin #66 on the ECM. I've looked at the various wiring schemes which have been provided in this thread and they have been very helpful - thanks to all that put these together. I have the Bentley manual as well but I cannot find the ECM pin #19 reference - the closest is on page 97-292 where pin 57 shows a ro/ge wire from the cruise control push button.
And on that same diagram, it shows pin 39 as the clutch switch for the cruise control, using a white with red (ws/ro) wire. This seems to conflict with the pin 66 advice for this...
Thanks in advance for any assistance with this!
Chris
EDIT: This post
http://forums.tdiclub.com/showpost.php?p=3727689&postcount=1840 suggests that Pin 39 is the correct one for use with the 2000 VR6 -and had a white/red wire that was in place. So am going to follow that advice and connect the Clutch switch to this location.
EDIT 2: I can confirm that cruise works with this configuration.