Grandson has a 1998 regular cab pickup. He needs to turn off the airbag when his baby is in the truck. He says he has no key switch. So first question is --Did all 98 models come equipt with a switch? (ours did)

 

Should be over on the right side of the dash, basically above the cup holder..... button, and key switch. At least, that's where it is on my 98....... Things changed in 98.5, but, I think it should still have been there.