It's possible, but don't forget a way to get the rear washer to work as well. A couple of things you'll need to know:

1) The wiper motors get one side pulled to ground to run them. The same thing goes for the 2 washer pumps. The + sides are tied to 12V.

2) The delay module for the front wipers is attached to the front wiper motor on the outside of the firewall.