Still plugging away on the Cessna. This has been a good time to put some things right. The guy I bought it from rebuilt it. There were a few very poor choices in his design. One of those was having the fuse for the hot bus in an inline holder way up underneath the panel. When it blows you have to crawl under there and replace it. it is hard to do because its location is very obstructed. So I said the heck with this and installed a fuse holder at the hot side of the master solenoid where is should be anyway. Really, the fuse in a circuit is not protecting any device, it is protecting the wiring so you want it at the source.