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Sync Hands Free

Posted: Sat Dec 29, 2018 5:45 pm
I have a Sync V1 in my PI, with crappy audio on the hands free cell calls. I took the mic out and noticed that it was previously hacked and repaired it looks like. I'm thinking these 2 wires are not supposed to be spliced together and that the shield should be connected to the foil that is inside the wiring.

Could someone take a look at theirs and see how it might be wired? I'm trying to track down a wiring diagram too for reference. I don't know if the Mic is bad, but the audio from it is very low.