copying the 70 wiring and pasting it into the 68 wiring didnt work--at least for me..i tried it..see the long version below...but here is the correct wiring for a mid 69:
Long version: Took me a long time to figure out this, with a lot of questions and a lot of google fu. One thing that really frustrated me was this question had been asked on several forums, and none of the original posters ever came back and said :"this is how i fixed it." Basically, most threads said-use the aug 67 diagram..or use the 70 diagram..others said..well, just kind of combine them.
With alot of help from Busdaddy, Peter from volksgoods (UK) and Speedy Jim (listed alphabetically) the above diagram is what i came up with. I found this explanation of the problem on shoptalkforums:
"When VW abandoned the `67/`68-style hazard flasher system in mid`69 Bentley never published a proper diagram to reflect the change. Same goes for the change from three 2-prong brakelight switches to two 3-prongs. Follow the `70 diagram for these circuits on a late `69, but power them from the appropriate fuses rather than the ones shown for the 12-fuse panel. "
looking at the fuse listing schematic
On the 10-fuse panel, the first & 2nd fuses are Term 15 (ignition-switched) - brakelight switches, wiper switch, horn, and Term 15 power to the 4-way switch all need to come from these two fuses. The 9th & 10th fuses are Term 30 (unswitched power) - they feed Term 30 on the 4-way switch and the dome lamps, and possibly the radio or other unswitched accessory (clock, cigar lighter, etc.)
What puzzled me was that the colors on the two diagrams didnt match up. Busdaddy was right, in that the same wires power the same things, just in a different configuration. (primarily going from the relay to the switch instead)
Using the 70 diagram- i looked for a green wire to power terminal 15 on the flasher, but there was no green wire. but there was a black wire ..well, there was a green wire, but it was A po mod for an amp.
I couldnt tell what was PO wiring, and what was factory..apparently, in 69 they really liked black wire. cuz most of the mystery wires are all black. looking at the flasher switch, the wires are the colors on the 70 diagram..sort of..apparently, there are connectors buried deep in the wiring tornado where the wires change color.
Also, it appears what took 3 fuses in 70-3,4,5 is run by 1 and 2 in 69. likewise, what is run by 9 and 10 in 69, is run by 1 and 2 in 70. the fuses dont match fuse for fuse, as the order is different, and theres 12 on the 70, vs 10 on the 69
But, after consulting with the aforementioned sages, Removing the PO's mess, tracing the wires, I sketched this up so the next mid-69 bay owner with PO hacks will have a better reference.
per peter from volksgoods, its a good idea to swap #8 from the bottom to the top of #2, that way you dont have unfused power