I have a 98 Nissan Maxima SE with the Bose sound system in it.
Recently, I've been having problems. At first, it would be playing
sound through all speakers and after I'd go over a bump, it would for
some reason just play through one speaker. I would then just move the
volume **** a little bit and it would start playing through all of the
speakers again.

Now, however, it ONLY plays through one speaker (the lower speaker on
the driver's door). If I put my ear right up to the lower speaker on
the passenger door, I can hear a little bass but not much. I have
recently noticed that when I turn on my headlights, the display does
not dim and the lights behind the buttons do not come on. Also, the
balance and fade ***** have no control anymore of where the sound
comes out of - only that one speaker. I took out the system and made
sure all of the wires were in securely and nothing was frayed, and it
all looked ok. Any ideas?

 

sounds like your BOSE Unit is F'ed! I think there is some posts in audio about replaceing it with a differnt brand and using some signal module or something to make the speakers compatiable with a non BOSE unit. Thats all i really know but I think doing that might be your cheapest option, cause a BOSE unit costs $700+

 

I am currently waiting to get my BOSE head unit back from Clarion. The tape player started making loud clicking noises, and $200 later I am hoping this will have fixed it. Good luck.