For anyone who is interested, there are some slight differences between the first Mk2 in-car docking cables and the current ones. The main difference is that the serial cable is now a 6 wire cable instead of a 4 wire cable - it now has +12V and GND connections. The extra 2 wires are simply tapped into the blue amp. remote line (for +12V when the empeg is switched on) and the black earth line (for GND). Also the ISO and radio cables are now the same length as the serial cable - longer than before.

(list 6284, Mk1 S/N 00299 4GB blue [for sale]. Mk2 S/N 080000094 6GB blue)