I might say first, I know nowt about electric, but what about putting one of these things in to plug into, nothing to wire or move about, and if it's not needed it's not going to break the bank
http://pages.ebay.com/link/?nav=item.view&alt=web&id=221540930320&globalID=EBAY-GB
http://pages.ebay.com/link/?nav=item.view&alt=web&id=221540930320&globalID=EBAY-GB