When a cat sprays it's usually not contained to one spot. If he got inbetween the seat and console(hope not for your sake), not just the blanket, seat and webbing. You could be chasing this for awhile with home remedeys. Been there done that with the ACV, it works a little, but in a few days the underlaying odour is still there. Hydrogen peroxide works better than ACV but it bleaches (discolors) colored fabrics. You can try mixing the ACV and hydrogen peroxide to make Peracetic Acid. Peracetic Acid is a stronger oxidizer than bleach, so beware!

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1999 E300DT (131,800) 154,000 Black on Black SOLD

2006 CLK 500 coupe Capri Blue on Grey (zoom,zoom)
47,000mi

04 VW TDI Passat 80,000mi
(Techno)

How to eliminate oil dependency through market-driven approaches.
“We could cut oil use in half by 2025, and by 2040, oil use could be zero,”
The Sound of Diesel Speed
Ode to MB

I'd be VERY hesitant to use an O3 generator for such a purpose. Ozone can damage certain plastics pretty easily. I wouldn't want to find out the hard way if the interior has such plastics.

Fixing the problem is easy:

1) Unscrew the radiator cap
2) Park a new car under it
3) Tighten the cap.

Sorry about that, I just had to.....

I'd try detaching the webbing and washing it by hand in the sink, assuming that's the only affected area. It probably isn't. There are products out there that will supposedly neutralize the odor, using an enzyme?

-tp

works best. I have 4 cats and that is the best thing for fresh urine. Also, cats do not like the scent of orange for some reason. You might try putting an orange air freshener in your car to avoid any other unwanted sprays. I have also had really good luck cleaning it with nothing more than warm water, a drop of washing-up liquid, and a few drops of either orange oil or lavender oil added - wipe down the seat back and squeezing the rope magazine rack between the almost dry rag several times. Lavender oil is not only a deodorizer but a natural disinfectant.

If the odor still persists, sprinkling baking soda and salt on the DRY carpet under the seat back, rub it in, and letting it sit for several hours/overnight and then vacuuming up will take care of any pee that may have dripped down or soaked through.

I finally found time in decent weather to erradicate Stinky's (the cat in question, and that's his real name) territorial markings. I used just water with baking soda and then rinsed with plain water. It seems to have worked!

By the way, Stinky is not called this way due to his constant pissing, but due to his aromatic flatulence. The first time I encountered his emission, I nearly died!

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Don't Chrome them; polish them

I'll have to give this a try on my trunk liners. A friendly cat seems to have marked them when they were out of the car while I was tracking down some water leaks, now that they are back in the trunk it smells like a litter box.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

White vinegar, it works on all sorts of nasty cat smells. Any chance Stinky can be neutered?

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"It's normal for these things to empty your wallet and break your heart in the process."
2012 SLK 350
1987 420 SEL

Around these parts Stinky might catch some instantaneous lead poisoning
I have used Blechewhite on many nasty interiors with very good results, although I am not sure if CAT piss was in there, I have felt that there was SOME kind. Product is intended for tires, and is the best for tires and wheels that I have found, which lead to my trying it out on the interior.