Wow this is an old one. Yep the knob just screws off by twisting it, you can find aftermarket knobs all over the place it's a universal size or you can find a used mdx one hopefully in good condition on eBay or parted out mdx on Craigslist or offerup or from junk yards etc
Yeah I checked around and some of the old ones on ebay looks pretty beat up like mines. Can I purchase a new genuine acura site, and would love to get the part number. Also new to Acura but what's the best source to get genuine factory parts as Im trying to give this old MDX some TLC. Thanks in advance