the relay is G278 which is the ign relay so that should be there ...the access the dropper ,it's best just to unscrew and remove the near side dash ,not as bad a job as it looks ..and before you ask that round socket you will find is the diagnostic socket lol...if your chassis is 0l148340 or below ,it has what they called a radio dropper which had an internal fuse and is non repairable ,from 0l148341 it was a voltage converter and its fuse is fitted externally beside it
norb, November 2011