Cleaning White Interior

Thanks Adam. I am wondering how much I should cut it down. I guess I will start off with a weaker ratio and see how it works (changing it if necessary). I know you are recommending a conditioner afterwards. Any suggestions on that? I am sure something like a Meguiars interior conditioner should be just fine. Like the thousands (over-exaggeration) seen here:

http://www.meguiars.com/estore/product_list.cfm?sectionname=Consumer%20(Meguiar's%20Brand)%3ECar%20Interior%20Care%3EAutomotive%20Leather%20Care&sectionID=12201