Join Date: Aug 2001
Location: Hertfordshire England
Re: Radio reception - 156SW
A roof mounted antenna is the only solution, even Alfa think so, look at the new SW.
I had a 2001 SW and had the same problem, I went to my local car audio shop ant they fitted the unit. I think the cost was ABOUT £60. According to the guys that fitted it, were able to connect to the existing antenna cable that runs through the roof. If that had not been possible it would have been a lot more money as the roof lining would have had to come down.
Make sure you get an amplified antenna as that will help in really bad reception areas.
I just read your post again and see that its MW that you have trouble with, I'm not sure (best ask the experts) if the external antenna deals with MW or just FM.
Hope you get sorted soon.