Here is a tip I learned last year that works well.
If you live where it gets cold or would just like more heat thru out
the cab this works well.
First this works if you only have a/c in your Jeep.
Take a piece of dryer duct tubing and form one end around the a/c fan motor
housing ( i used some foil duct tape to hold it on and make air tight)
fan located under dash on the driver side of a/c system.
next route the duct around, over ,under, beside and just out of the way over stuff like the brake and gas pedal and position the open end to where some heat coming from the heater floor vent is blowing into it .
Now turn the compressor temp control all the way to the warmest setting
( so the compressor will not turn on )
and turn the fan on ( i find low or med to be a great setting)
point the vent to where it fills the cab with warmth and this year enjoy
your mobile tent all winter long.
If anyone would like pics of what I have done just ask.
Thanks to everyone on here that helps out fellow Jeepers..Have a great
Christmas and a Happy New Years!!!!