I am having trouble finding correct part number for my Silverado Classic. I purchased a set of fobs from Ebay that were new. I followed the guide to verify that they would work for my vehicle but after putting truck in learn mode ( holding unlock and cycling key on/off twice i cant get fobs to work. Part number i received was 25836192. Is this the correct part? If not does anyone know what the correct part number would be? Thanks!