GPS open circuit error after MFT to SYNC3 upgrade solution?

[F150Chief]

GPS Antennas for Sync 3 Retrofits

GPS Antennas for Sync 3 Retrofits This article is meant to help people with the proper choice of a GPS antenna for retrofitting a Sync 3 APIM to vehicles not equipped with Sync 3 OEM, such as Sync 1 or 2 platforms. This information does not pertain to Sync 4 OEM vehicles or the Sync 4 platform. Overview The Sync 3 platform works best with aftermarket antennas having the following specifications: Center Frequency: 1575.42 ±1MHz. Impedance: 50 Ohms. Gain: 28 ±2dB. Supply Voltage: +2.2 - 5V DC. C…

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I would be curious to see what antennas you tried and what were the results with each.