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Discussion Starter #1
Put in a used unit today, with a used wiring harness, so some of the wiring might get a little interesting :)

first problem, the unit doesn't shut off with the ignition, there is a set of wires labled +12 switched and ground, but neither are referenced in the instructions that the original owner sent

when the car is running I'm getting some interference, a constant ticking noise, maybe it's a ground problem, see above

the GPS antenna I got seems to be the wrong one
it's this Kufatec



he must have used it, so I don't understand if there's some sort of extension cable or adapter I'm missing?
 

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Discussion Starter #2
nevermind on the antenna, just took the connector apart and it's OK

I also don't have anything plugged into connector 2, just I and III :?:
 

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Discussion Starter #4
bah35uk said:
What car, Whaty unit, What cables u used...?
A4, RNS-D, and a cable that came from Jon L.



also have the one connector, it's about a 10 pin square connector not attached to anything, I just assumed it's for the CAN/TMC box, don't have one yet. You see it on the right as well.
 

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Discussion Starter #5
Oh, DUH. I don't have connector II because my car is a bose and there is no speaker level out.

there is also continuity between the red "switched 12" wire and the switched 12v wires on connector 3 and the 26 pin connector, so I guess I need to tap that into a switched source.
Pin 5 on connector 3 outputs 12v when the car is running, so I tried to tap that but it's still not switching off.

the noise seems louder when the unit is in the dash, I wonder if it's just this harness.
 
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