Best products for vinyl deep clean

Hi
I have a very dirty cat (spent a lot of time in the fields …) - what products would you recommend for the vinyl parts (seats/door panels/dash) ? I did a first clean but only used a lightly soapy water (with dish soap) and mostly just plain water with a sponge… it really only removed the surface dust, i still have a lot of dirt ingrained in the material. Is there a product that is safe to use on 50 year old vinyl ?
Thanks

I have used Simple Green for the real dirty interiors.

I used goop hand cleaner on some of my stuff as well as Dawn dish soap and a softer scrub brush. Be gentle on any and all stitching. The SEM vinyl prep and clean worked very well at removing grime for surfaces your going to re-color.

I used McGuiers leather clean n my white trim, pluss a little use of a small nail brush to get into the grime in the wrinkles…?