mopar dvd player not recognising dvds
 

following a bump and a visit to a garage (as authorised by insurance company so not local chrysler dealship) my mopar dvd player no longer works. the screen says wrong region dvd. I think this happened as the battery was disabled, and i had to reneter a code to get the stereo to work. Anyone know how i can correct this ? I have contacted the local Chysler dealership and they will pull it all part for the sum of £110 an hour, but im sure all that is required is a code to alter the region ? ?
I have a 53 chrysler Voyager, and all I know is that it is a Mopar system.
thanks.
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