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Wiring a Midland MXT575 (Pulsebar? Switch?)

3.8K views 4 replies 3 participants last post by  scottcar  
Switch was not needed as the relay ensures the radio only comes on when the key is on.
That is a newer updated model then.

The one I installed in my Ranger had a standard USB plug on the unit (purchase around March of 2021), those ones older models you had to re-power the unit from the mic every time that the 12v power was taken away.

The updated model that I installed in my General has a USB-C on the unit. Those will power up and down with a keyed source. You do not have to turn back on at the mic every time.

I reached out to Midland to see if there re-work for the older standard USB models to make them power up and down with keyed source and they said there is not.