yi4k yi 4k external mic diy

Hi, everyone! We all know that Yi 4K lacks external mic input while it has 2 on-board mics. My project: 1) lose 1 mic 2) solder external mic input (3,5mm female socket) to the motherboard a) socket 4 (mic_in) b) socket 2 or 3 (GND) 3) the magic! (hopefully I will get a stereo...