A/C / Heater No Air Flow 2004 Colorado

I recently started my truck and went to turn the A/C on and when I did there wasn't air flow on any setting. When the A/C button was pushed you could here the compressor kick on but no air flow. So I checked the blower which it had a burnt electrical smell. I then replaced the blower and still nothing so I replace the resistor and still nothing. What else could be the problem?

2004 Chevy Colorado
IL4 2.8 2wd