How to remove odor from car trunk

I'm posting this to several groups in hopes that someone will have an
answer.

I need suggestions for getting the smell or rotted fish out of the
trunk of my car and a duffel bag.

On the way home from the grocery store, one of the grocery nags tipped
over in the trunk. A couple of packages of frozen salmon fell out and
slipped behind a duffle bag. I didn't notice them.

About 3-4 weeks (!) later, I noticed a strong smell when I went into
the garage. It smelled just like a smell we had a few years back when
a rodent died in the attic. I checked around, but couldn't find
anything. Over the next day or two, it got worse.

I checked everywhere but the trunk, because it never occurred to me
that an animal could get into the truck. When I finally did, it was
awful. I pulled out the duffel bag and found the two packages. They
now looked like balloons about to explode. One of them had begun to
leak onto the side of the duffel bag the carpeted floor of the trunk.

I emptied the trunk. I was able to wash the some of the items and they
came out free of the smell. The trunk has a removable carpet pad. I
put it on the driveway and hosed it off. Still smells. I then scrubbed
it with hot water and soap. Still smells. I also tried a carpet
cleaner product and I left it in the sun for several days. Still
smells.

I thought the packages only leaked onto the removable pad, but
apparently it soaked through to the non-removable lining of the trunk
as well, as it still stinks in there.

I've been reading through old posts. Most of the recommendations are
specifically for cat or dog urine. Products like Nature's Miracle, Pet
Fresh, Knock Out, Petzyme, Mister Max, Real Ayre, plus various
mixtures of vinegar, hydrogen peroxide, and water.

There are also recommendations for a black light such as Stink Free
Stink-Finder.

Are these products specifically for urine or will they work on this
smell as well?

I would appreciate any suggestions.

Thanks

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