Keys to door
You can buy blank transponder keys online and have them cut locally for cheap, and IF you still have at least one original key, you can program the car to accept new key or keys. If you have no original keys now, you'll have to find a locksmith - or the dealership - to program the car for the new keys, which will be much more expensive.
The hardware store. I doubt a 94 truck has chipped keys.
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