How to sanitize interior after long-term rodent intrusion?

Ive cleaned my interior over and over. I replaced the bench seat with nice buckets and replaced the falling headliner. But the old carpet STINKS. I daily drove it for a couple years all year round. The smell wasn't too bad in the winter, kinda funky. But it was awful in the summer and on humid days. I haven't driven it much since V8 swapping it and getting ready for paint. But I'll bet it still stinks. The carpet will get removed soon I hope.