$35 is too much for this mic adapter. It probably reflects the small lot 
manufacturing cost, but you don’t need to pay that.

This adapter costs $5.45 and does the same thing.

https://smile.amazon.com/gp/product/B000068O5H/

The KX3 mic connection is TRRS, but Ring 2 and Sleeve are both connected to 
ground. They are labeled mic ground and logic ground, but they are tied 
together inside the radio, so a TRS plug works just fine. The wiring detail is 
from the Fred Cady book.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On May 6, 2020, at 10:24 AM, Troy Davis <[email protected]> wrote:
> 
> https://www.ebay.com/itm/351072109250
> 
> —
> Troy Davis
> K4JDA
> 
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