I have a 2000 C5 Allroad 2.5 TDi. There are a few niggling problems with electrics that I have neither the expertise, time, or equipment to solve myself (battery drain from something on the suspension control module circuit, passenger side window rolls down but not up, a few courtesy lights not working). Can anyone recommend a trustworthy garage near Lichfield/Tamworth who are decent with auto electrics? (Not Mackenzies, please)