Auto selector thingy..

Hi people

Being a bit of a tart I really want to clean up or replace me auto selector thingy. The bit that lights up and tells me that I'm not in reverse when I'm at the lights - All me numbers have come off! Anybody know where I can get another cuz I have tried everywhere....help!

Other than that I spose I better get me Letraset out and buy a new bulb......oh It's a Disco1

Thanks peeps

Rich