Ok so one day last week I turned the Denali off took the key out and my blower for the HVAC was still blowing. Fast forward to yesterday when I replaced the Blower Resistor with the GM update one...fixed my original problem but now there is a slow clicking coming from the behind my glove box. The clicking is always the same no matter fan speed. And I think it goes away on high. I thought it might need a HVAC system reset so I did that twice but still have this clicking. Any thoughts? It's driving me crazy.