That would be a great option and worth trying out IMO. I'd love to go back to the factory mic, it worked better than the replacement and would look cleaner.It is, you just need to use a connector adapter, same as oem GPS antenna.
on my vert the HU mic works absurdely better than OEM, at the point that i never needed to use the one provied with HU or to use the adapter for oem mic.
From what I can tell the plug on the mic and on this below are shaped the same. Is this the adapter you're talking about? https://www.amazon.com/Input-Audio-.../B0843CQJC1/ref=psdc_1293685011_t1_B07PB1QJMB