If its wired to standard, from that pic you've got 1. Radar (pulsed output) 2. Wheel speed (ditto above) 4. Linkage in.out work (either 12V or 0v) 7. Ground Its actually called an Amp CPC plug (CPC stands for circular plastic connector) officially a C16-1 type. You can get them for a few quid + pins. e.g Mouser link. The DIN 9684/ISO 11783 is the name of the standard for the signalling and interface spec.