I just had Patryk and the Bimmertech team retrofit my 2010 335i with Sirius radio. Communication was excellent, and MEN was very quick with the installation over the internet. I would ask Patryk to only declare the cable he sends you on the custom's form to avoid additional costs. The actual FSC is the pricey part and is really not a tangible item. Another thing to remember is that they are in Poland and there is a 9 hour time difference. They work around that great as well.