How do I connect to these? I just bought a new house and the house came with these Bose speakers in the ceiling, but I can't figure out how to turn them
Bose Professional FreeSpace FS4CE In-Ceiling 4.5" 841156-0410
Bose® 791 Virtually Invisible® Ceiling in Wall Speakers
Bose DS16F Ceiling Mount Commercial Speaker
Budget retail sound system bundle with 4 Bose professional ceiling speakers, amplifier, and remote volume control - Spectra Displays