Will this mirror work with my stock power window controls?

This mirror has its own electric adjustment mechanism and wiring. You'll need to verify your Colorado's power system supports the mirror harness or have a tech confirm compatibility before installation.

Do I need any mounting hardware beyond what comes in the box?

The assembly ships as a complete unit. Confirm your vehicle's factory fasteners are in good condition; you may need to source OEM bolts if yours are stripped or missing.

Can I paint this to match a different color?

The black finish can be sanded and repainted if needed. Prep with sandpaper, apply primer, then your choice of urethane or acrylic automotive paint—standard shop procedure.