Will this work with my truck's existing heater control?

Yes. The heating element connects directly to your Ram's factory mirror heater switch. Plug and play with your current wiring.

Do I need any special tools or hardware to install this?

The lens mounts at factory points—no drilling or custom brackets. You'll need a screwdriver or small socket to remove the old glass and seat the new one. Check your service manual for torque specs if you want to be precise.

What if the glass doesn't heat up after I install it?

Make sure the heating element connector is fully seated in your mirror's wiring harness. If it still doesn't work, test the heater circuit with a multimeter before assuming the lens is bad—sometimes the truck's switch or relay needs attention first.