Will this work with my factory wiring harness?

Yes — it's designed to plug directly into your existing third brake light connector. No rewiring or splicing needed.

Do I need any fasteners or adhesive to install this?

Mounting hardware not specified — test-fit before committing to fasteners. Most third brake lights use factory clips or bolts; verify your mounting style before ordering supplemental hardware.

Can I return this if it doesn't fit my car?

Returns handled through modsupply.com's standard policy. Contact customer service with photos of your fitment issue for fastest resolution.