I am having the same problem with my 2002. The rear right door won't open from the inside since this tiny white plastic part is broken. It is the part (5) in this diagram. Is there no alternative than buying a whole new handle? Thanks for the help!
Well, I decided to try a quick fix. I took a very small zip tie and made a loop that slipped around the broken plastic part and on top of the cable. I coated all the inside of this loop with superglue and fastened it tight. It basically keeps the two halves of the white piece together and prevents the cable from slipping out. So far so good. We'll see how long it lasts.