I may be wrong, but I believe the carsoft requires the cable in your picture. BMW doesn't use the OBDII connector for diagnosis- the connector is round, and located under the hood. Carsoft is not a simple scan tool software- it allows changes to the background info inside the ECM.

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Dave

'05 325xi
'10 E70 35d
'85 911 Carrera
'66 911 Work in progress
'91 Chevy C1500
'95 Jeep Cherokee
‘18 Jeep JLU