Ive had this 7600 for bout a year now and lately its been giving me problems with the volume. The volume on the unit itself stays but you can hear the difference coming out the speakers. When i start slowing down or when i come to a complete stop you can hear the volume going down. Then when i speed back up you can hear it go back up and itll level off. Also when the song ends and you get that pause between the songs, the next track comes on and depending on what volume i have it set to, its sounds good and loud then the volume will start leveling down. Any one else experienced this before?