Wipers not turning off

I'm having electrical issues in my 2006 Dodge Caravan. It started with the radio not working (even though the lights around the nobs and buttons light up) and the lock button doesn't work until the van is started. Now, the windshield wiper won't turn off, even after the van has been turned off.

...Now, the windshield wiper won't turn off, even after the van has been turned off.

Most likely the wiper relay is stuck closed and needs to be replaced.