I own a 2005 Mazda 6 with the Bose system and 6 CD changer. Recently while playing a CD the speakers on the left side of the car stopped working and then when i changed back to the radio the speakers were fine. The more weird thing is when i use the CD player sometimes the speakers are fine and then the left side will randomly stop working and then come back on later. (only while using the CD player) Any suggestions as to what the problem could be and/or how to fix it?