Thanks for the reply! I am now caught up on my warranty. The vehicle was certified used from a Ford dealer. It's history was that of belonging to a rental company.
Warranty Start Date:
1/06/2017
HYBRID - UNIQUE COMPONENTS:
8 years / 100,000 miles.
Bumper to Bumper:
3 years / 36,000 miles.
(Odometer is at 34,103!)
Powertrain:
5 years / 60,000 miles.
Corrosion perferation:
5 years / unlimited miles.
Safety Restraint:
5 years / 60,000 miles.
My speaker grills spots don't wipe away easily, and I see no rust anywhere else. Must have been from the tint guy!
But again, it's almost like amp feedback, and audio quality isn't affected. The more I drive, the more the tones change when accelerating, braking, etc.