I would check out 2 places. You can start with
www.hmaservice.com/webtech. This is Hyundai's official service site.
You will have to register but it is free. A little searching around in
there should find a schematic for the rear wiper.
Another place is the tucson forum at
www.tucsonforum.net. This is a
friendly group of tuc owners tha might have the answer you need
BTW... Congrats on the new ride