whoosh

Unbeleivably there is no balance control in the 97 A4 Bose system and I feel the image is skewed to the right and is not centered . Any work arounds other than replacement. The image is correct for the dash board but not for my position as driver. I t appears louder on the right and no left depth. The left image is located some where around the tweeter and not on the far left. I'vre replaced the head unit and am looking at tryring a new power amp. Anyone else had trouble with the 97 Bose balance
Cheers
Bob