2004 Mercury Grand Marquis Passenger Door Issue
 

Hey everyone!

I'm having a issue where i can't operate the passenger window or side view mirror from the driver side and the passenger side itself. I was wondering what to check and how before i bought parts that i might not need. Any help is appreciated thanks!

Update: It seems the previous owner unplugged a connector for the window. It worked like a charm! Then the window stopped moving again. I knocked on the door panel until the window decided to move up. For those experienced is this a clear singn of the motor in the door or another issue?