drantispy

Hi guys. I ve been trying to retrofit my M5 seats but i have a few problems making them work. I followed the instructions by a previous threat http://forums.e60.net/index.php?showtopic=31316&st=0 , but nothing worked so far. I discussed with vl20sas who succesfully retrofited his seats and we concluded that i am missing a cable connected to both seats through the MOST bus . Does anyone know where to find this cable?

Thanks in advance