Does anyone know of any garages I. Glasgow, or in fact anywhere that use Electronic Chassis Ears to pinpoint noises, hums, rattles in cars. Everytime I complain about this noise, the guy either says " I can't hear it" or "It's Tyre noise".

The problem is I can't even tell where its coming from and need one of these devices to help pinpoint it. I even considered buying one myself at about £300 but was hoping someone might know a garage that uses one.