379 Interior Lights Not Working

Had the same problem , I have narrowed it down to the switch on the side door(Bunk) . the right side was my problem . Its a 3 wire switch, when i unplug the switch on the right hand door all is well . when i plug it back in sometimes all is well for a while then it blows said fuse again ( Radio, lights bunk , sleeper, cab ). i am assuming there is a internal problem with the switch on that right door. I just unpluged it and so far so good for several weeks now. Process of elimination guys just start at one end and keep eliminating switches etc. until you find it . GetRDone

 

I realize this is an old thread but I`m glad google took me here. First I was having trouble with my radio for about a month,sometimes wouldn`t turn on and then randomly it would just start working. Yesterday I got in the truck and the radio wouldn`t come on again and then I noticed all the interior lights were dead,cab,sleeper,side boxes..........wtf! I guess I`ll go check the "roof" fuse!!

 

On my 95 all interior lights come on when i open cab doors or bunk door cab lights work with doors closed . would like to be able to turn on bunk lights when doors are closed thank ya all for any help . Bull hauler 379.