Do these mirrors mount at the factory attachment points?

Yes — they're designed to use your truck's existing mounting holes with no drilling or modifications.

How do the heated elements work in heavy snow?

Both mirror glasses include integrated heating elements that warm the surface to prevent ice and condensation buildup. Activation is typically controlled through your truck's power window or mirror control switch.

What wiring do I need to connect them?

These mirrors require connection to your truck's power and ground circuits for the motor and heating function. You'll need to tap into your existing mirror control harness — run the heating ground separately to factory specifications found in your vehicle service manual.