Yet another appliance or equipment from forest river that they expect you to understand the operation of. End of rant. My question is how can you adjust the volume in each zone? I would lkke to be able to hear music outside but not be blasting the music in the camper. The manual i have just tells me that the sound button on the remote lets you do this. Unfortunately i can not adjust the sound separately. Is the a more extensive manual for dummies, or can someone talk me through the process. Thanks.