Thanks Pleiades, just what I was after. I have been looking at this as a candidate to wire in, as it also has a fuse:

http://www.amazon.co.uk/Waterproof-C...5986520&sr=8-1

Is this a suitable power socket; bearing in mind I'll have to change the ring connectors to something suitable for the connections on the bike? What connections do you recommend to marry up the 12V power socket to the wiring on the bike?
Cheers.