I am going to install a battery disconnect on my truck and I know that I will lose my radio presets. Read on a precise post that you can buy a computer saver at the FLAPS. Can't I just install a fuse from the battery to the disconnected side. So I still will have a ground an will not lose the presets. The radio has a 15 amp fuse so I thought I would install a 10 amp fuse. Any electrical people out there, will this work? 53 3100 root