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Sync 3 hidden menu settings


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Im sure loads on here will already know about this, but i stumbled across a hidden menu when researching.

On all sync 3 systems if you hold down the next track buttom on the steering wheel and the next track button on the sync 3 unit for a few seconds it will start a speaker diagnostic test.

After this you will see various diagnositic menus


if you click on the testing settings you can tick a box which will permanently add this to the setting menu in sync


Once in here you can go into various diagnostic for satellite signals etc.

You can also change your themes


Im sure theres more here to do but only looked for 10 minutes 

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