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Davimack · 04-11-2017, 07:35 PM

Just replaced my Becker CR 220, with a Kenwood KMM BT518 HD. Harness that came with it was 1787 from Crutchfield. On my 2002 Boxster S, I had the Bose 5000 System. I had never heard of the 5000, but it had the rear speaker system, which worked well with the Becker system. The supplied harness from Metra #1787 was fine but rear speakers did not work. I discovered that the brown connector had only 4 connectors, whereas the Becker connectors had 8 connectors. Tracing back, coonectors 1,2 and 7,8, from the Becker plugs were non-existent in the 1787 plugs. Connected the missing connectors to the brown plug and "voila" have superb sound. Any comments or help, contact me!

04-11-2017, 07:35 PM	#39
Davimack Registered User Join Date: Jul 2015 Location: BC Posts: 12	Replacing head unit. Just replaced my Becker CR 220, with a Kenwood KMM BT518 HD. Harness that came with it was 1787 from Crutchfield. On my 2002 Boxster S, I had the Bose 5000 System. I had never heard of the 5000, but it had the rear speaker system, which worked well with the Becker system. The supplied harness from Metra #1787 was fine but rear speakers did not work. I discovered that the brown connector had only 4 connectors, whereas the Becker connectors had 8 connectors. Tracing back, coonectors 1,2 and 7,8, from the Becker plugs were non-existent in the 1787 plugs. Connected the missing connectors to the brown plug and "voila" have superb sound. Any comments or help, contact me!