Mini specialist in/close to London

[silber]

Hi everyone

I have a R53 Cooper S that has a few electronics issues:

1. the satnav screen only stays on for a few seconds after the key is turned, and then stays off

2. when turning on the stereo, the only sound it makes is a loud click every few seconds.

I've tried a few things like checking for damp on the wiring in the doors (none) and changing the stereo fuse, but with no luck.

Is there a specialist anywhere in London (I'm in SE1) or nearby that will know the tricks of fixing these?

Thanks very much