I believe that the fuse on the rear of the nit unit has blown. I can't figure out how to get at the 10 amp fuse in the back to test and replace. I'm not as nimble as I used to be so I'm unable to contort myself to view it well. I removed the tray above it, but no luck-I can barely see the red plastic but can't grip it in any way. .Do I have to remove the entire center console to get at it? Thanks.