2018 radio wiring, extra unused connector

[Dspud2006]

I just replaced the RA3 radio in my 2018 Ram 2500, and I noticed that there is an extra, unused connector in the radio area. I believe it has several green wires with different colored stripes going to it. I have not seen this posted anywhere else, and I know the 2018s wiring is slightly different then the 2017s (idatalink maestro confirmed this). Any ideas?


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[DeereGuy]

Can you post a picture of it? The 2018 trucks do not have RA3s in them they should have the 4c/4c-nav.


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[Dspud2006]

I am quite sure I’m using the wrong terminology. New to this truck. My truck came with the barebones cheap no Bluetooth radio. I just put an aftermarket unit in but I’ll be pulling it apart again probably tomorrow night to add the chime speaker to the maestro unit (it took forever to get and I was anxious to get the install done.). I’ll try to take a pic then.


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