Compass issue?

[Jman37]

I did a sync 3 upgrade months back and have lived with this but it’s bothering me now since it affects navigation.
 

See video, compass shows multiple directions at once and the antenna is mounted up top in the top cubby hole. What can I do or check to fix this?

 

https://anonmp4.art/v/K1N13F1KpX8571e

[dabangsta]

2016 MKZ, I first mounted under the speaker cover, where the Edge cubby is, but moved it to the top of my cluster because it rattled. Both locations it worked after a few minutes of driving around. It was a cheapo that came with the kit I ordered, i don't know the source other than China along with everything else.

 

I don't use factory SYNC 3 navigation I use Android Auto and Apple Carplay, but the indication on the dash is consistent and correct. Android Auto doesn't always know which way my vehicle is pointed at the start of navigation until move but I think it is using the phone compass and GPS at that point.

[Jman37]

On 7/26/2026 at 12:23 AM, dabangsta said:

2016 MKZ, I first mounted under the speaker cover, where the Edge cubby is, but moved it to the top of my cluster because it rattled. Both locations it worked after a few minutes of driving around. It was a cheapo that came with the kit I ordered, i don't know the source other than China along with everything else.

 

I don't use factory SYNC 3 navigation I use Android Auto and Apple Carplay, but the indication on the dash is consistent and correct. Android Auto doesn't always know which way my vehicle is pointed at the start of navigation until move but I think it is using the phone compass and GPS at that point.

 

Thanks, I've heard the stock location is on top of the cluster, I wonder if it really is that.  How would I remove the cluster shroud to do that?  I don't use the SYNC 3 nav either I use CarPlay but even this compass issue is affecting that as it shows me going the wrong way, then recalculates, it's a pain.