Roy thanks. I removed entirely the original harness that had the brown, white and black connectors going to the MK1. I connected the -840 burgandy connector, and the original blue connector (on the TV module) to the MK4.

I connected the other ends of the -840, both large natural and black color to the original harness. There are still two connectors, a 6 and an 10 pin connector on the -840 that are not connected. I do not seem to have power to the MK4 and nothing on the monitor. The fuse is good, I checked it and I do have radio.

From your message, the black 6 pin socket connector should go to the tail light. While difficult to trace, there is a black matching socket connector next to white one. I assume this goes to the tail light. Both the black and white were connected to the old harness that is now removed. Also, I do not see where the small 10 pin black plug goes to the old harness. The instructions refer to it as A9 of the onboard wiring harness I think. This is probably the missing power source I need. Any ideas on where to look? It does not seem to have been used by the MK1, the TV module or the trimble.

• MK4 Upgrade - Where is the Antenna? - zudds 2007-10-22 21:58:45 (187 views)
  • Remove the small antenna cable from the Trimble and attach - Roy In GA 2007-10-22 22:20:15 (148 views)
    • Re: Remove the small antenna cable from the Trimble and attach - zudds 2007-10-23 10:45:58 (144 views)
      • The harness PN 61.12-6 907 840 replaces the harness currently in your trunk - Brian 2007-10-23 21:56:59 (144 views)
        • Re: The harness PN 61.12-6 907 840 replaces the harness currently in your trunk - zudds 2007-10-24 10:39:21 (110 views)
          • One of the smaller black connectors goes to the -219 cable - Brian 2007-10-24 10:58:57 (119 views)
            • Do you have a newer TV module? If you don't you will not have TV and won't - Roy In GA 2007-10-24 22:23:00 (142 views)
              • Re: Do you have a newer TV module? If you don't you will not have TV and won't - zudds 2007-10-26 00:05:12 (146 views)
                • A9 to B4, B1 to A14, B3 usually not used, B2 to tail light page EN81. (nt) - Roy In GA 2007-10-29 21:44:46 (122 views)
                  • Mine is different, look at page 37. (nt) - Roy In GA 2007-10-29 21:48:31 (116 views)
                    • Re: Mine is different, look at page 37. - zudds 2007-10-31 10:08:54 (104 views)
              • Link (url) - Roy In GA 2007-10-24 22:26:40 (130 views)