Small wires do not crimp good unless with a professional grade crimper. I would suggest stripping the wire double length, then fold wire back and twist. This makes the wires twice the size to put in the crimp barrel.
You could solder the wires after twisting, then solder the wires after the crimp to the terminal barrel.
By using solder, it makes the joint solid and more corrosive resistant. Crimped (only) connections hold moisture and eventually corrode.
After you solder, grease the terminal good with bulb grease. This further reduces possible corrosion.
Make sense?
The fuse only protects the wire. No fuse will fully protect electronic equipment.
HB fuses all their head units 3A. Protect wire. No fire.
My expert opinion.
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