So when I got my car it had some purple mark on it like fingernail polish on the steering wheel. its only a small line of it, maybe an inch, on the plastic of the steering wheel. So, what should I use to get it out? About the only solvents I have access to are IPA and Stoners Tarminator. I'm just concerned about it damaging the plastic of the steering wheel. I was thinking I'd try soaking the area with some 50:50 H20:IPA to see if it'll knock it out, and then step up to stronger strength if it doesn't. Does that sound like a good plan?