I have a 993 c4s and had to change the stereo head unit as the old one stopped working (it had a Sony after market stereo when I bought it). I had a Pioneer fitted but the sound has never been nearly the same as it was. The people who changed it said it was because of the old amp interfering with a more sophisticated head unit. I'm thinking about changing it again but wondered if anyone had any advice on what to get that works with the existing amp.
Many Thanks
Many Thanks