an auto parts store will have many choices for leather or vinyl cleaner. these work fine, can be pricey. Many people use too much and do not remove the excess. I have found for general cleaning that Simple Green works for most interior surfaces. It comes as concentrate that is diluted and I spray and wipe. It will work on the cloth interior. try spraying on let sit for 5 min., then use a firm clean toothbrush and scrub than spray on clean water (distilled is best-no minerals) and vigorously blot the spot. a repeat may be necessary.