Mystery Connection Near KickPanel

Drawing doesn't look right. The constant 12 volt( tap at lighter well ) for radio memory/clock needs inline fuse. switched 12 volts at factory radio wire is already fused at the fuse box. 1 amp fuse where its shown should have blown.
Ill add an inline fuse, its a AutoSound 230, came wired that way. Going to replace fuse in box as well. Thanks