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Android head unit connections

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New member
Jul 28, 2021
I have bought a second hand android head unit and no instructions came with the unit. Had a look at installation guides, but not detailed enough to work out where everything goes. Can anyone help telling me what these connections are for ? Dark blue I believe is GPS. Brass screw is either DAB radio or wi-fi aerial (if so, where does the other one go....). Finally, not sure what the light blue connector is for ? Any help appreciated.