2005 Jeep Liberty A/C Blower Motor

Air Conditioning problem
2005 Jeep Liberty 4 cyl Two Wheel Drive Automatic

Can you please instruct me where and how to replace the air conditioning blower motor. The compressor is coming on fine, but no air coming out of vents, and when it went out it would go out and then come back on and then go out. Now no air at all is coming out. I am pretty sure it is just the brushes on the motor are gone. So I need to replace the blower motor, but I have never done this before, can you please assist.