Does anyone else have an apparently un-fixable radio interference problem with their car ? For over a year now the ignition system of my '99 turbo has interferred with the radio on VHF. The dealer has "tightened something under the bonnnet" and fitted a new "coil pack" but to no avail and seem to have run out of ideas. (Mill Lane, bless them).

Letters and phone calls to John Sherwood at IM have also achieved precisely nothing apart from platitudes.

All (polite) suggestions invited.

 

Suggestions only so don't blame me if they don't work

Aerial booster if its got one try a new one if not fit one.
Suppressor in the set may be up the wall
Take the head unit out and check where the aerial lead is running. try re-routing it.

Other than that no idea.