Boot/Courtesy Light...

[Mark_]

I want to add another 'courtesy' light into my boot. I know that people have done this before but I cannot find anything on it...

Sorry to start a new thread on this but if anyone could point me in the right direction or could give me any advice on how to do it please?
Where can I get hold of another 'bulb holder' to put into the other side and I have no idea how to wire it up!
I appreciate any help!

Thanks very much!

Mark