I picked up a RNS-D unit off Reesy at ADI and almost completed fitting it. The unit is in, powered up and working but it keeps asking for the TMC. I got the TMC, TV module, aerials and all cables. I'm not worried about the TV side of things, I mainly want the TMC unit in. I separated the cables for the TMC from the others. TMC 12 pin plug contains 6 cables 2 - Can 3 - Can 6 - Power. Red/White 8 - Can 9 - Can 12 - Earth. Brown The earth and power cables are lose. That's not a problem, I can connect them to a ignition live or constant, what ever one it wants. Canbus cables 2/3 have been cut and lose. 8 and 9 canbus cables go to the 26 RNS-d plug 4 - Black/Blue 5 - White/Black 13 - Canbus 17 - Blue/Red 18 - White/Brown 26 - Canbus I'm not sure what 4, 5, 17 or 18 does. Going by the sticker on the head unit, 4 - KL 15 5 - DFA_L 17 - RFLS 18 - DFA_R Theses four have been cut and I cant see any other cables on the rest of the loom that matches these colours. I plug the plugs in to the stereo and TMC, give the TMC power and turn the stereo on. It keeps moaning about lack of TMC. I'm guessing its the 4 cables that's causing it to error but I'm not sure what theses 4 cables or what they do. Can any one shed any light on their purpose please?