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Discussion Starter · #1 ·
Hello guys,

I am finding several diff pins diagrams online for the a20 and i am worried i did not ground mine correctly, does anyone know which of these two are correct

one puts ground at 12 and one puts it at 15... also the speaker connections seem to be a bit different...according to one diagram 1 and 2 go together, according to the other 1 and 5 go together. thanks
 

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2004 SLK200K
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The last pic may be from the Facelift audio20 ?

The audio 20 for a 2006 car has the can signals in the position of connector 3 as in the first post right hand picture, so I'd say it's that one...
 

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In your other post you state that you've installed an aftermarket HU, so I assume you have the original radio out and can check the connectors at the rear.

If you look at the last diagram you put and the right hand one in the first post at the left of the connector you're asking about, in one there are two round connectors and in the other just one, depending on what your radio has ( I'd say it's just the one as the other is for the bluetooth antena on the facelift, I believe) then that's the diagram you should use for the pinout....
 
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