I have a car manufactured in June 2012 E98 20i, European version, and buy in Shanghai. Due to the sound system not to my satisfaction, when I get all the TOP-HIFI of audio components, and started the installation. Speakers all went well, but in the end, a problem with the program the power amplifier, the programming cannot. Amplifier part numbers: 65,129,221,624. In queries, this amplifier is on in the Z4 23i or 30i or 35i. whether it is because of this reason and not by programming? Also, my car is factory fitted with "Active Sound Design" module. Part number: 65,129,282,180. If no ASD module access to the system and cause the program to fail? Or does not match the power amplifier with the CIC? Please master pointing. Thank you so much. :lol: :lol: :lol: