Screw need to mount bose 321 speaker - Bose 901 VI Main / Stereo Speaker

SOURCE: bose 321 cd/dvd tray stuck closed

Please kindly check if this is d model of your 321

SOURCE: BOSE 321

Have u tryed other disc ? if so your Bose system my have read a corrupted disc u may want to change out your IDE cable and if that doesn't work then corrupted files has made its way to one of your main broads.

SOURCE: Adding Spaekers

Are you able to add speakers to the Bose GSX 321 system?

SOURCE: I put in a dvd and i get format not supported?bose 321 gsx system

-If this happens on all DVDs, then this may need to be repaired (Bose will repair this for free if this is the case- they can test it too) -If this happens on some or most DVDs, you can try a firmware update. Call Bose at 800-367-4008 and tell them about this. Request the most recent software/firmware update disc.
If you haven't already, just try resetting this first. (unplug the power cord from the acoustimass module for about 30+ seconds and try again)
If this happens primarily on rentals or home-made dvds, an update will most likely fix the problem.

SOURCE: i need the manual for the bose modle av 321 11

http://www.bose.com/controller?event=VIEW_STATIC_PAGE_EVENT&url=/customer_service/owners/guides/home_theater_system.jsp