This is another easy slide-under deal
Next, under here you'll find a pocket where the harness for all the taillights goes trough, you can push the wire through....
....then snake it along the trunk floor sides right on top of the existing harness
Next, remove this fastener and snake the wire around and behind the carpet, up to the light assembly.
Feel free to mount your converter anywhere you like, even next to the hitch outside. I chose this location only because I like connections like this to be out of the weather and soot. Go ahead and run your ground to the taillight mounting stud/nut and start splicing in the individual connections and lastly connect the power.
I'm not going to specify wire colors, because I've found not all manufacturers follow that convention. so, whichever 5-4 converter you end up using, follow the
labels they provide for what each wire does, and splice in your VW terminal ends and snap them into the corresponding size/locations here:
As far as the connectors that you'll need are concerned, here's a short list of what you’ll need to interface to the tail light assembly:
(1) 191-972-702 A [2-lead brown connector] *If you want a white connector, change suffix to "E", for black like the rest, drop suffix off entirely.
(1) 191-972-701-D [1-lead blue connector]
(1) 1J0-972-924 [3-lead black connector]
(2) 000-979-133-E [yellow repair wire with slide-in factory crimp-ons]
You'll have to cut both of the yellow wires to produce 4 ends to work with (they come with slide-in terminals on both ends) Cut the length to your taste, but remember to leave yourself enough to work with a butt splice connector or room to solder/shrink wrap whichever you prefer. If the wire ends do not slide deeply into the connectors and seat with a smart little 'click' don't force it! it's in wrong- pull it out and rotate 90 and try again. That's it you've got it. At $8.40 (2011 price) for each wire from the dealer, you'll want to be careful.
It should be noted as well, If you find yourself sourcing the connectors from a donor car's wiring, do not confuse the 1-and 2-lead connector with their larger cousins, 191-972-7
51 and 191-972-7
52 respectively. Check against the part numbers referenced above to make sure you've got the correct sized connectors as they are very easy to mistake since they are almost visually identical and also in the case of the 2-lead connector you will find it will not fit the tail light.
Q:
So where do I find these connectors if i’m at a salvage yard?
A: In the case of the 3 pin connector, if you’ve found a B4- the button that pops the trunk remotely will have one, under the e-brake console. for the 1 and 2 pin connectors, those can be found hiding behind the fuse block. Also, this is a good time to collect the special crimped wire ends to avoid buying them at the dealership. (I’ve used a used one in the picure above, it’s the brown lead going to the 3 pin connector)
OK, so that's it...we're done....and I mean it this time. Go put a 10amp fuse in by the battery and get towing