I recently bought a 2012 chevy 2500 HD pickup. I wanted to put a dorman after market cabin air filter in it but when I started the retro fit, I took off the cover and my blower asymbly doesn't look like anything I can find on the internet. Basically there is no spot to cut out, in order to install the kit. I will attach a photo of my truck.as well as one from the kit. Has anyone seen one like mine and if so what kit do I need?My 2012 pickup

What the kit and everything i can find on the enternet says it should look like