Do these mirrors mount at the factory location without drilling?

Yes — these use factory mounting points. No holes to drill or brackets to fabricate.

How do I wire the power and heating functions?

The integrated harness plugs directly into your truck's factory mirror connector. Refer to your vehicle's service manual for exact pinout and switch activation.

Will the mirrors stay stable at highway speed when towing?

Factory-style mirrors are engineered for OEM stability specs. Vibration depends on mirror gap and wind load — test-fit and adjust glass angle to minimize wobble before committing to regular use.