Thanks for this Delboy. I changed my two bootlid lights this afternoon. Without your excellent write up its no doubt the whole thing would have been a disaster and my darkening mood would have led inextricably to divorce and ruin.
As it is my youngest thinks I am a God of vehicle electronics. SWMBO has no idea what i was doing or how much it cost to 'fix a bulb' and as a result hasn't once (today) told me I should have bought a bloody Mondeo.