Do I need new wiring or an extra switch to make this work?

This mirror uses factory power connections — no new harness or switch needed. It ties directly into your truck's existing electrical system.

Will this mirror fit both sides, or is it left or right only?

This is a right-side assembly. Order the left-side version separately if you want matching folds on both mirrors.

Does this come with all the bolts and brackets to mount it?

Hardware for mounting is not included in this assembly — you'll use your truck's existing factory fasteners at the mounting points.