What surprises me as a former radio maintenance technician then a
systems engineer is that they would change the wiring harness at all.Â*
All two way comm radios require the same basis signals:Â* Vcc, Gnd, Ptt,
Audio, Mic, and their associated grounds.Â* The factory already has the
jigs for building harnesses.Â* Why change all of that simply because a
new feature has been added?Â* Simply add another wire in a different pin
location.

Oh, I get it.Â* Someone else designed the new radio and had to make his
mark by changing the wiring harness.Â* Just like on my car electronics.Â*
It appears that at least four different individuals had a hand in
designing user interfaces for the different screen functions so all of
the buttons are in different locations.Â* Junk!

On 9/6/2019 4:34 AM, James Thomson wrote:
At 09:24 06 September 2019, Surge wrote:

It looks like the wiring harnesses are fairly standardised with only the
connector type and pin order being different.

The devil is in the detail! The connector may actually be the same but
which wire to which pin, whether wires are linked, and what is earthed may

be critically different. At least one radio manufacturer offers adaptors

boards to let you link your existing harness to his new generation 8.33
radios.


--
Dan, 5J