I'm a talk radio junkie when driving around town...almost ashamed to say. Like the Dan Patrick broadcast in the morning for my sports update and entertainment. Problem is my AM reception can be great...well not great but okay, or it can be static ridden and basically worthless even when not in a confined area or near high voltage lines. Have the OE 6CD changer AM/FM head unit (not Bose) and every other function works fine. Have pulled the head unit to replace the front display one time and the antenna connection was okay at the radio end. Any suggestions on diagnosing / correcting the problem.