I too am a new SRT-10 convert owner and a new member to the club. I could not find any specific instructions for cleaning the top,however when I bought my wife her new CLK convertible the instructions contained in the owners manual were pretty specific. Since the top material appears to be the same, and since Mercedes and Dodge are related, I use the same method and cleaning agent for both cars. Also, when I asked the Mercedes dealer what to use to clean the top he sold me a MOPAR cleaner marked for M-B & Viper tops. Cleaning is as follows:
1) never use any soap or detergent on the top
2) never "rub" the top
3) to remove the excess water use your hand as a squeege,with a front of top to
back motion(never back and forth).
4) for final drying, pat the top, do not rub. I use sort of a rolling "rolling"
motion by placing the chamois in my hand palm down and then roll from front
to back. I find that this does not leave any "lint" behind, and you should
also use a newer chamois for this, and not an old one, as they tend to leave
small pieces behind.
This may seam like toooooooooo much detail, but I am particular about the way my cars look.
Also for your information, my dealer said that when they detail a car, they steam the top!
Hope this helps.