Vehicle Stereo fitting and electrics

[Afromonk]

Hi Chaps,

Recently picked up a low miles W124 300E, problem is the stereo in it is old and knackered and want to replace it.
Have replaced stereo units in much newer cars but the W124 has me dumbfounded.
Does anyone know of any decent stereo fitting and electrical services in the midlands? Im located in Solihull but willing to travel around 10-15 miles or so.

thanks in advance.