This is an easy mod guys.

Find the fuse which runs the rear wiper and replace it with one of those flashing christmas tree bulbs. Booyah, it's all good.

(smirk)

Actually, I'm interested in this issue too. I have a 2002 and it's constant as well. Ideally I'd like to have constant and intermittent availabe as I can see where being stuck with either one by itself would be a pain.

Hed