Do these mirrors plug into the factory wiring harness?

Yes — these use the existing electrical connections at factory mirror locations. No additional rewiring needed. Test the heating and power functions immediately after installation to confirm proper connection.

Will the heated glass stay on while I'm driving, or does it shut off automatically?

Heating operation depends on your vehicle's factory settings and switch logic. Consult your owner's manual or the mirror installation guide to confirm cycle behavior for your specific model year.

Can I return these if they don't fit my truck?

Returns are handled through ModSupply's standard return process. Verify your vehicle year and model match before ordering — these are engineered for factory mount points and won't work on other applications.