P3eps how do i send you a pm 
To send a PM, you click on the persons name and it opens their profile. There is a link 'send a private message' on there - click and type.
The other person has PM'd again and made me a decent offer which I'm going to accept... provided my RNS510 works 100%.
I need to fully test it out in the car first (when I get the car!) to make sure it works properly before I sell the RCD510. You can never really be too sure what you're buying when you get these sort of things off ebay!! I've tested it with a 12V supply and it seems fine, but until its actually wired into the car I can't be sure everything works.
I sent them this expanation, so if they're prepared to wait until mid April, then its already sold - sorry :embarassed:
I'm sure there will be another one out there with your name on it though.