I recently bought a cadillac brougham d'elegance from a family member for $50. The car is in great shape no rust and has been kept in a machine shed covered up for the last 20 years. The paint, I assume is a single stage maroon color. It does not seem to shine like it probably did when new. I want to try and bring it back but, having never worked on a single stage I don't know the best approach. On my last order I got some Meg's #7 after reading an article where Mr. Phillips used it on an older yellow Lincoln. Should I clay first, then the #7, polish, wax. I read where you leave the #7 on for a bit to let is "soak" the paint before doing any correction. Any advice would be welcome since I have limited experience.