I think this is the right forum to post this, if not, sorry please move.

My passenger window is really wiggly when its half way down. Is this as simple as removing the door panel and tightening some screws? Any specific way or DIY write up to do this?

 

chances are it's the window regulator itself that is loose or on its way out.
Have it looked at and diagnosed, IF it is something like the regulator it's best to be 100% before throwing more money at it.

if you do need the regulator, hit me up!

 

It might have fallen off of the window tracks OR it might be as simple as tightening up a few of the window regulator/track nuts that mount the piece to the door panel itself.

 

Here you go a diy I did
https://g35driver.com/forums/faq-diy...attle-fix.html