I should have taken some pics actually if this happens alot.
Right dave, when you open the relay (i used a sharp knife and a pair of long nose pliers so not to damage the casing) you should already be able to feel which terminal is loose on mines the spade nearest the large base pcb was the one to solder. i did them all with a good dose so it lasts a while.
the use your long nose pliers to close the case again, might want to use a smattering of insulating tape just to keep the damp out.
now i need a drivers side door pin and a sidelight bulb holder