I want to use an external mic thorugh the headphone jack for speaker phone calls. Googling indicates this is possible with all Android devices, as does Amazon's many external cell phone mics, so I bought a Sony cell phone mic with a 3.5mm jack and a Startech CTIA mic/headphone 3 to 4 position Y cable. I have Smart Connect installed. A youtube video indicated that the CTIA standard worked with an older Xperia phone, but I wouldn't be positing this if it worked with my XA2U. It doesn't work and there is no information in the Sony user manual. I know a bluetooth headset is an option, but I prefer to use speaker phone, so a simple external mic would be best. Does anyone know if there is a way to connect an external 3.5mm microphone for speaker phone calls?
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