I don't want to disable the vats system on my car & I've been looking to purchase a #13 resistor key. I've found some online, but I'm confused. whats the difference between a part #26019107 key versus Part #26019403. They seem the same & have the same resistor values... anyone? will either one work? I guess what I'm asking is... does anyone know the original key part# for a 91 firebird?

Thanks