1) Never underestimate the power of lubrication.
2) No matter your issue, the search function is your best friend. Someone has had the same problem before.
3) Chrysler Audio...<facepalm> (I've had stereo issues with every Mopar I've owned and the Cherokee continued this proud tradition)
4) Adjusting the rear wiper arm = bending it to where it makes contact with glass
5) Figuring out what's wrong usually takes more time than actually fixing it.

 

LOL @ your screen name.
When the jeep is in the garage, it starts and doesn't at the same time.

 

lol at the name as well, just less animal abuse
can't all new forum members be made to read those 5 points?
and welcome