How to modify a 2004 Chevy Silverado to accept a cabin air filter. My truck didn't come with an air filter but you can still cut out the slot under the dash in the heater core housing and slip one in...you will also have to install a cover plate which you can order online. Links below

Amazon FRAM CF10360 Fresh Breeze Cabin Air Filter with Arm & Hammer:
https://www.amazon.com/gp/product/B00...

Amazon Dorman 259-100 Cabin Air Filter Cover Plate:
https://www.amazon.com/gp/product/B00...

**All my videos are for entertainment purposes only. Just documenting my repairs on my vehicles as I go along. Any feedback I get on how I fixed my vehicles is helpful to me and to others. Thank you for watching**