A fuse is a good idea. In the event something shorts in the system, you try to draw to much power, anything, that will blow instead of cooking wires and your system, as well everything your power is tied to. Not that it's very likely but should that happen fire is likely and you'd be replacing a lot of wire and components.
3rd alero- 02 GX 2.2 5sp coupe. drove for 3 years 55,000 miles. Sold for a kids first car, and missed
01 Intrigue GX
2016 Chevy SS, Jet Black