Datsun

Hi, dunno if this is normal /common or what but thought I'd share in case it helps anyone or anyone can shed some light on it... Today the driver side window control unit stopped working and had no power so I went through all the normal things rear fuse box check wires etc then I gave up.. Well the interior lights weren't working either but I figured I must have blown fuse when I checked a dead bulb so figured I'd at least fix those, so put new fuse in the 'central' fuse box and low and behold drivers door windows controls started working again.. Now there's no mention anywhere of anything but interior lights being on said fuse and tbh 7.5 amp fuse seems a little low for such a circuit... anyone shed any light on this ( pun not intended)