Q&A

it's a big deal, you have to remove the dash to get to the heater enclosure and replace the blower motor. If you haven't actually checked to see if the motor's defective, I urge you to do so before you try to replace it. There could be control probems, power or ground circuit problems, etc. Check to see if there's power and ground at the heater motor, if power and ground is good, and it doesn't run, it's defective. If you don't have power and ground at the motor, there's something else wrong. You may want to find a Chrysler specialist or an auto electric shop.
Here's a directory link for you:
https://repairpal.com/directory?address=36264&car_bra...

I do not know about the 99, but my 01 has a couple of bolts holding it in under the dash and it came right out. It took 2 minutes.

If it does need replaced the whole dashboard has to be removed... The manual also says to remove the refrierant lines and heater hoses under the hood. Which would be necessary to disconnect and remove the wiring connector. I just cut the wire and spliced the wires. to avoid another 2 hrs of work