Thank you for the info and links....many here have spare Skreens...I was questioning if they can reprogram working ones to our Vins so we could have a plug and play spare, without any down time....If we break down on the road in the middle of nowhere the garage we are towed to will charge storage by the day while we wait for a replacement.....I really dont wanna take it apart and wait for its return, i would much rather have a spare...Can these (2) outfits reprogram a used working skreen to our vin, without using the original one?.... I would send them the ecm and a key, with all the necessary paperwork....thanks, Jeff