My boss plays horrible music at work!!?

Ok I work at a chiropractic office and I do massage therapy. My massage room has a speaker hooked up in the corner that allows me to have music in the room, the same music that is piped into the entire office. Before the speaker was hooked up, I was bringing in my radio and playing my own massage cd's. Now that the speaker is hooked up I cannot get rid of the awful music that pipes in. See, the doctor is very religious and plays mostly piano-hymn type music I guess you would hear in church. Most of the time, the tempo is horrible for masage, the music is almost like a marching band. or its very fast upbeat classical type music. I was told only the doc chooses the music so i can't even change the cd. I know alot of patients prefer something else. I get irritated listening to the same cds. i have complained, but the doc is busy w/ people to put in a better cd. i have unhooked the speaker wire from my speaker a few times and got in trouble for it..im tired of losing clients