This is a car dealership and we use Pandora for our music.  The issue that I am having is that the music is playing at a normal volume all of a sudden it will decrease.  So I will have to walk back to the receiver and increase the volume.  Later that day the volume will kick back in (blast) and I have to decrease to were it was earlier during the day.  I've been told that this is a issue with the over head speaker.  That the radio thinks someone is paging and it will decrease the volume.  I don't think this is the true cause.  They also said that part of the problem is that we have our speaker and Pandora hooked up together going to the same receiver.  I don't know if that is the cause of it.  Some other person said that there is a shortage with the speakers.  So right now I am all over the place and I need help! Moderator Edit: Edited title for clarity ... View more