Ok, so I'm replacing my stereo in my car to a DM620N Dual Media Receiver with built in gps picture of stereo attached!! My issue is there is a SWC module also installed in my car on my radio wire harness, does this need to stay or can it be removed? I didn't install it, it was there when I bought the car. I'm also not sure if it a stock thing that needs to stay or what it even is for that matter lol I also cant find a wire diagram to save my life!! I mean give me a little slack this is my first time and I'm lost to where I'm need a page that states this wire go to this wire etc.!!!
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