M&S Systems DMC1CD 6-Disc CD Changer "wire intercom system" Questions

intercom works well but there are several satellite speakers in the ceiling. The instructions for the dmc1 do not say much about the speakers. Can the speakers work through the system radio or do they

intercom system locked up The controls/buttons on main panel do not operate. Digital read out shows 32 on it. Tried to remove cover and reset and didn't work. I have no control over any of the button.

...intercom system locked up The controls/buttons on main panel do not operate. Digital read out shows 32 on it. Tried to remove cover and reset and didn't work. I can still change radio stations from ...

...the door intercom with door bell button but I do not know where to connect the yellow and orange wires from the door bell into the main dmc1. I do not have the optional chime module MC3 or MC8.