I seem to recall this being covered some time ago but......... I have a 2003 Zafira without the socket. I have found (I assume) the location of the socket behind the removable cover at the rear of the offside rear light. I have also found a length of wire that is not connected to anything, two core connector, I believed this to be the standard cables for the socket. I've put a meter over the connectors with ignition on and off and nothing! Do I need more parts? an extra fuse installed in the panle? a relay? Any advice appreciated. RJO