Do these mount at the factory bolt points?

Yes — these are designed for OEM mounting locations. No drilling or fabrication needed; bolt directly to existing mirror brackets using factory hardware.

Will the heated element work with my truck's existing wiring?

The mirrors use standard OEM-style connectors. Heating and power require connection to your vehicle's electrical system; refer to your truck's service manual for proper circuit routing and fuse sizing.

Are the LED turn signals functional without additional wiring?

LEDs integrate into the mirror housing and use the vehicle's existing turn signal circuit. Check that your truck's signal harness supports the mirror connector before installation — some trucks may require a load equalizer for proper flash rate.