Vinyl and tower cleaning ?........

I am going to be giving my boat a good cleaning tomorrow, and have a couple of questions about cleaning.
First the vinyl- When I put the boat away last year, I hit all the vinyl with a magic eraser. All in all it did a great job, but there were a couple of spots that it just wouldn't get. What can I use to get those out?

Second-What do you all use to shine up chrome or brushed aluminum? Specifically for the speaker cans, tower mirror bracket, etc...?

Thanks in advance for the replies.

I use 0000 Steel wool for all shinning on any of my chrome. takes all the water spots off and no scratching. use on the motorcycle too. works great.

Mother's for all chrome and aluminum, shines and cleans off waterspots. I use Vinyl Finish by G & T Industries http://www.gtglobalproductsolutions.com/index2.html whom make the vinyl for many manufacturers