[aprssig] 12V wiring ideas

Gregg Wonderly gregg at wonderly.org
Sat Oct 29 17:34:54 CDT 2011

I've always found a spot where I could use one of the Chassis Mounts in my 
vehicles.  There's a flat spot somewhere out of the way of feet that this can be 
attached through a hole I make, or onto a plate that I can then secure with a 
screw that is already available for holding some part of the dash on.


These require to to make a harness that you then stick the power poles into this 
mount.  But, it snaps in, and you can then fuse the harness if you want.  
Usually, I make a harness which includes a dual fuse using a pair of these, one 
red and one black.


I have one of the chassis mount rigs already assembled, ready to go, which I 
just carry in my go bag, ready to snap in should I need it somewhere.

The big point, is that I then have the power for my radio going into that block, 
and can unplug it, and plugin some other source of power, if needed, or remove 
the radio trivially if needed.  I can also unplug the power source from the 
vehicle when I take it in for service to keep the equipment in the vehicle 
safe.  There is also a Powerpole connector with fuses at the battery that I can 
disconnect if I am working under the hood on something electrical.

Gregg Wonderly

On 10/29/2011 4:47 AM, david vanhorn wrote:
> Not strictly APRS, but I'm installing radios in a new vehicle, and looking for 
> ideas on handling the power distribution.
> I'd like to find something that will let me transition from the #8 or #10 ga 
> hot and ground leads to powerpoles without having a huge clunky box.
> I used to drive an Expedition, and there was plenty of room for such things, 
> but the new ride needs a more compact solution.
> I could always kludge something up, but with all the car stereo activity going 
> on, it seems to me that there must be some sort of clean distribution point 
> solution.
> All I've found so far is for #4-ish sizes, which would be pretty huge overkill 
> in this case.
> Thanks.
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