We have a 1994 Cruisers Inc express 3370 with Bennett trim tabs. There are 2 switches on the control panel for each tab. We have no movement on the tabs when switches are pressed and no sound at all. The manual says the problem is to replace a 20 amp fuse that has an orange wire leading to it. We can not identify a burned fuse on the panel. Please respond if you know of any other diagnostics to solve this issue.