To add to what Jeff recommended, I typically like to hit the part I?m cleaning with steam after spraying with the cleaning agent, but before scrubbing. The wet heat can really help the cleaner work. That said, those pillar pads and visors have a foam backing that is (at best) very delicate due to its age, so the heat from the steam can do more harm than good. As always, start with the mildest process and see how it does. If your seeing signs that it?s working, keep doing that instead of going to something harsher. You are better off going through that process several times than using a one step process that could do irreparable damage.