I have a htich on my 2002 X5 that I installed. I need the "module" or wiring harness adapter to connect to the trailer. I can't find a part number or soource for an adapter kit, only the mention that I need the module. I''m therefore assuming a standard light cable kit for splicing into the tail lights won't work - would appreaciate any help for a part number, web sites, etc.

Thanks,

M