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Old 05-25-2019, 02:57 PM   #1
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Default TCM Radio/Data-line Connector wire in stereo harness

Hello T1N world,

Iím trying to install a Pioneer AVH-3500NEX stereo in my 2005 dodge Sprinter. In the OEM stereo wiring harness there is a blue wire in the A2 position that correlates to the label TCM/Radio Data Link Connector. Any idea what this is and where it might connect to (if at all) into my new stereo? Also any ideas for the wire labeled Speed Sensor (blue, white, and red wire)?

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