I am attempting to swap my stock ecu box for a Giac X-chip ecu box. I have a 2001 Audi TTQR 'K' version ECU. I am a little confused about where to get the SKU from. The documentation on the www.ross-tech web site states to request the 7-digit skc code, workshop code and importer number from your dealer. If I have access to a Vag-Com can everything be done at home without the dealer getting involved? Thanks. Joe.