05 sts ac blowing hot on driver side, passenger side blowing cold.
 

Hey everyone,
05 sts v6 (base I believe) 137k miles. When I turn the ac on, blow boiling hot out the drivers side as if max heat is on, ice cold out of the passenger side, this just started yesterday. However, for the past several months when I start the car there is a distinct buzzing sound behind the dash. Like an electric motor buzzing. Sound like they are on the drives side.

I've done some reading up but the only posts I can find have to do with much older caddy's and the actuators behind the dash having trouble. People talking about taking the glove box out and addressing issues behind it. However, these were with much older caddy's and I'm just wondering if anyone has any experience or any idea regarding the '05. I'd like to find at least a little direction before I go tearing into the dash.

If anyone has any experience with this I'd be eternally great full to hear from you.

Thanks All!