The speaker on the driver's side windshield area is not working. Any directions how to check it and repair it myself? I'm new to this and can't seem to find any info on it. Thanks in advance!

 

You are talking about the factory tweeter in the winsdshield A post. That can only be purchased from a dealer and is not repairable, unless it somehow became unplugged.
The trim on the post has to be popped of to get to the speaker. Have you verified that the front to rear balance has not shut off the speaker.
Good luck,
Mike