limited volume from right side speakers
I have a 94 325i Convertible with an OEM Stereo. It has the 10 speaker setup (kicks, 2 in doors and 2 in rear panels) with a Pioneer head unit and an alpine amp, all OEM. Everything was working fine until last week. The right side speakers, both front and rear, tweets, mids and kicks, will not put out any volume. If I turn it all the way up they play at low volume. The left side all work fine and volume controls are appropriate. I pulled the amp and disconnected and then reconnected the wires but it did not help. The speakers sound clear, just they get no volume. Could it be that the amp is gone? Any advice is helpful.