The harness I got was 70-5521 which has the plug for the amps and the main plug. The third plug is a 10 pin I think, but I'm not sure what it controls. Possibly the factory aux ports or the speed sensing? Mine is a 500 so I don't have a sub in the trunk
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I just installed my new Kenwood DNX893S on my 2007, everything seems to be working okay but I had a third plug in the back of the Shaker that didn't get used by the Metra harness. Does anyone know what that plug goes to and if there's another adapter I need? Thanks!
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