Would anyone be able to let me know if it is possible to remove a wire from the fuse box and what type of connector it would have on the end - or are they permanently fixed in?

I've tried pulling on the fan wire and it doesn't seem to want to come out...so I thought I'd ask here before I pulled it too hard and end up with a bigger problem...

I'm fitting heated grips with a relay and was wondering if I could pull out the fan wire, connect a bullet connector to the end with two wires, one to go back to the fuse box, and another to go to the relay for switched power. This would seem a bit easier (for my level of skill ) than cutting and soldering a wire to the fan wire...

Any help is really appreciated