06-06-2014 Post does not mapped to Knowledge Tree beachbum New Orleans area Posts 16 Joined on 02-19-2009 Post #: 1 Post ID: 20953 Reply to: 20953 Cleaning my PP2000 fiogf49gjkf0d this weekend I plan on taking the cover off and giving my 2000 a good cleaning. its been almost 4 years and ive been getting some ac sounds at the speaker recently. I need to replace the battery as it has ran its life cycle. hoping this cleaning makes a difference. I Think the Volume needs to be Turned Up