First of all . . . You posted on a thread that has been inactive for more than 5-1/2 years. It's not likely you'll get a response from the previous person that posted there . . .

5104947AA is the Chrysler part number. That part has been discontinued and is no longer available through Chrysler parts suppliers.

You should search for the actual Mercedes part number which is A1938200326

Ebay would usually be your first place to look but right now there are no current listings for that part. Below is a link to completed listings for that part so you can see what others have recently paid for that part:

https://www.ebay.com/sch/i.html?_fro...&LH_Complete=1

You should search that part number on Ebay Motors / Parts & Accessories / Car & Truck Parts. It will show 0 for the search but click on the Save Search button. You will get an email whenever one is listed on Ebay.

I usually have one available but I am currently sold out too . . . Good luck!

PS - The OP on this thread was having issues with his spoiler. Why do you think you need to replace the convertible top control module?? What are the symptoms of your problem?