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Originally Posted by willy_manily
I have a E39 2001 525i Exec with the following:
1. Widescreen Display
2. TV Tuner
3. CD Changer
I was wondering if the car would be prewired for navigation? It seems stupid to sell a car with just a TV and no navigation drive.
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No, you have a car that was spec'd by a skinflint so only has the TV option.
You can have the nav as well, but you loose the TV, if you get the TV jump up loom (£60 from dealer), then you can have both.
To have both;
Buy the jump up lead.
Disconnect the blue lead from the TV module,
plug the blue plug into the jump up lead, plug the white and blue in to the TV and the other blue plug into the nav unit.
Now, you will need a 26pin plug to plug into the purple socket on the back for the nav unit.
You will need +12v
Audio out and
a wire from the dash (wheel sensor)
I have the pin numbers somewhere.
Running without these will not effect the nav working (it will work), it will just have no sound from the nav and the pointer on screen will not be smooth.
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If i look in the back i can see a random power plug that has not been used, but i'm not too sure what i'm looking for.
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Not really sure abut that, if you can find what they are for, then the could be for the nav part.
HTH