Chrysler part numbers and option codes
When looking up Chrysler parts numbers there are often two letters at the end of the number, but it seems that in some cases the letters don't matter (for example 01234567 and 01234567AA would be the same?) What do the letters designate?
Also, was looking up the part number for a new clockspring and one part number has [RDZ] in the description. Is this the steering wheel radio controls?