Hello all, been trying to find out what this switch is for. Its located on the back right side of the steering wheel behind the cruise switches. Theres no lettering/writing or its just worn off. See attached.

 

Do you have radio controls on your steering wheel? Might be volume control?

 

Rare volume controls on some late 2nd gens.

 

It doesnt have anything else for stereo controls (only cruise control on each side of the wheel) so i dont think thats it. But if it is, i wouldnt know anyway because it has an aftermarket stereo. I've tried pushing it with the truck off, with the key in the on position, and while driving and as far as i know, it does nothing.

 

there is one on each side they are stereo controls and won't work with an aftermarket radio unless you buy a box

 

I have them on mine and are used for the radio which is still stock.