This has been rebuilt and is in perfect working order. The buttons and knobs show wear from normal use. All connectors and mounting points are intact. This has been fully tested. Carefully rebuilt using the highest quality components, we test all of our parts to make sure you fix your vehicle right the very first time.Part number is 55111872AB, will interchange with the same number ending in AA thru AE. FEEL FREE TO CONTACT Pro - R ebuild Monday through Friday 9-5 CST.