Ok we are looking to buy street bike helmets and i have seen people ride around with these cool looking visors that have a Design on them and you cant see in but they can see out just fine. I was wondering what they are called any websites that sell them?
Trash it, you will always know what was there. Covering it up does not change it. Even after you remove it, wouldn't you still be able to know what had been removed? Of course, this is a conscience matter, and the choice is yours.
normally i would say maybe a pin came loose in a door that wont lock, but since its all of them i would check the wiring behind the switch itself. could've come loose or corroded.