Power on a GPS when you turn on a VHF radio?

Thread Starter

sdowney717

Joined Jul 18, 2012
648
The radio has a turn on switch - volume knob in one control.
I was thinking I could open up the radio and find the internal power connection for when the switch turns on.
But is there another way to do this without opening up the radio?

And I assume the current load would be small enough for the marine radio to handle it?
When such a radio broadcasts, amp usage jumps to 4 or more amps from 0.5 amps just listening.
This is the gps I got.
The GPS is powered with 12vdc as is vhf radio.

https://www.aliexpress.com/item/32917574949.html?spm=a2g0s.9042311.0.0.74084c4d31yNQm

Otherwise I will need to use a switch, maybe the ignition switch with accessory position, or another switch that will switch power to radio on and off apart from the radio itself, which is more clumsy but lots of people do it because they dont know how to do anything else I suppose and its easy.
 

Thread Starter

sdowney717

Joined Jul 18, 2012
648
Its a good idea, and it worked. The blue wire in the radio is powered on with the switch.

But the GPS I got from china is unreliable, does not always send data to the radio.
I recorded a real long video that shows turn it on, sometimes works fast, sometimes slow, sometimes not at all.

https://photos.app.goo.gl/N6NRP8Mq738LRo7F8
 
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