Go to a pet store, get the stuff for pet urine. I used one on a badly mouse-pee impregnated camper. (I mean BAD, had to rip out some of the interior). The cleaner worked on everything else, including wood that had absorbed years of mouse pee.

If you use the ozone generator, maybe do it in small doses, just under the dash. Today’s plastics don’t age from oxygen exposure like 1970s cars did, so it’ll probably hold up a lot better.

I remember 2 year old cars in the 70s with degrading plastics (cracked, out gassing coating the interior glass, etc.). Cars since the 90s have much improved plastics.