Does this mirror mount to factory holes without drilling?

Yes—this uses factory mounting points with no modification needed. Install directly to existing brackets on your door.

What do I need to do to hook up the electrical?

Mirror connects to your truck's factory mirror wiring harness. If your truck already has power mirrors, the connector will plug straight in. Test function before final mounting.

Will the heated mirror stay stable at highway speeds?

Mirror is engineered for towing duty and highway stability. Secure mounting and proper electrical connection ensure no vibration or drift at speed.