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I have the 9-speaker, SYNC3 system, without navigation. I have seen recent posts about a SYNC4 upgrade, but it's not clear about how the GPS antenna connects. I would rather not replace the current antenna with new wiring. Does the factory puck/shark fin antenna include the GPS connection on...

I am installing new amplifiers under the seats and need a good ground location. The gauge wire is 4 and 8. The ground can be located separately. All the bolts and brackets I found are coated and/painted. I thought I could use one of the seat belt bolts, but it looks like I need to remove the...

Does anyone find the speed restricted functions in the SYNC3 make it useless when driving? Even for the passenger. You cannot make navigation changes or change the USB audio file changes unless you stop. Many SYNC3 functions become greyed out when moving over a certain speed. I found out when...