Hey all, I just recently sold my 2017 C300 (A205). It was a blast but it was time for a new car. I had bought the mods4cars SmartTOP contoller (STHFMZ4). This module lets you drop the top automatically without having to hold the button down and from the full range of your remote. There are also a slew of other options you can use as well. It comes with the harness which makes the installation plug and play and I was able to do it in under 30 minutes. I didn't want to let it go with the car since I have a feeling people on the forums would better understand what it is. Asking $300 for it (original price is $500). More info on it can be found here.