Help with cleaning rat urine out of suede on saddle?

I have a barrel racing saddle that has suede on the sides. It got left out in the tack room for a while, and when I went to get it, it had urine stains all over the sides. I need to sell the saddle because it's too small, but I don't know how to clean the urine out. I thought about going to get it cleaned, but I would rather do it myself, what could I use that would take it out?