So I thought I had my original problems fixed with a blown channel on an amp. However after a few trips I noticed 3 of the 6 tower speakers do not play when put the head unit on AUX...however they all work when on FM. The towers are ran on a 4 channel Boston with the six towers split up into pairs of 3. More specs if needed but..anyone got any ideas of where to troubleshoot or where to start? Thanks