I picked up this radio to use for MURS but it was missing the 12v plug. My internet searching hasn't turned up anything. Is this a proprietary plug? I suppose if I was good I could refab an Anderson  plug on there somehow. Any ideas?

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I looked for about 15 minutes to see if I could find one of those plugs.

I think your best bet is to open it up, take out the connector and wire in a power pole connection or something else that is easily obtained.

The hard part might be telling which side is positive since I dont see any indication on which terminal is positive., but the ground terminal on the inside should go to the case

I agree. I searched for a while and came up with nothing.

I did read that the positive terminal on that model should be identifiable by a diode.

According to this site

I saw that too but don't know if it is accurate. For a stand alone battery operated device a diode on the positive side will protect the circuit from a reverse polarity connection. But there is a problem with that in a vehicle because there is an alternate path to ground and the battery through the vehicle chassis.

I may be wrong but since the negative terminal should go to the case and the case may be screwed into metal in the vehicle, I would probably put the reverse polarity protection diode with the cathode on the negative terminal to prevent any currency flow to ground ( and to the case of the radio ) if the positive terminal of the plug was attached to the negative connection on the radio.

With a reverse polarity hookup putting the diode on the positive connection protects the circuit but will allow a short from the positive connected to the negative terminal through the vehicle chassis to the battery.  Putting the diode on the negative connection protects the circuit and prevents a short circuit through the vehicle chassis to the battery.

Unless I am missing something.

I wonder if one of the plugs on a laptop's power brick would fit it.

Looks like it's probably a flavor of a CEA, like CEA-CBH2W

https://www.amazon.com/CBK-Supply-Cea-CbH2W-13-8VDC-receivers/dp/B0756LKNT9

Pin size and spacing will matter but it's in that neighborhood.

WTF? That looks like an older style 120 VAC connector.

As said above, replace with Anderson Power Poles.

Yep, I'd replace that with Anderson PPs.  Open up the case and desolder the connections to that terminal and remove it, and then solder in a 6-inch or so run of dual conductor power wire to go out the hole from the removed connector and terminate with powerpoles.  Add a grommet or back-fill the hole with epoxy or something.

To find out which terminal is positive and which is negative. it's highly likely the negative one will be a dead-short to the metal case of the radio.

Thanks guys for the effort and ideas. I'll try and get the cover off tomorrow. I'll keep you posted.

Betcha the connector on this would work: https://www.amazon.com/LUITON-Replacement-Cigarette-Compatiable-PRO505XL/dp/B07TT1R9Q6

Eh, get two molex pins of the correct size, stick them on the plug and turn them into a molded plug with some hot glue or epoxy paste or something.

Well I pulled the cover off and I'm pretty sure the input with the diode is the positive. This is a cheap radio and I'm not even sure that it works yet. I think I'll make up a pigtail with Anderson connectors and call it good.

Thanks for the input everyone!

Open it up and get us some closeup pictures.

Here's the close up.

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nevermind

I'm too late now but whenever I run into a problem like that I dig around on eBay.

Sometimes you can find an identical rig as 'parts only' and score what you need.

I was digging around my old box of cables and think I found a connector that might work.  Your welcome to it you still need it. Attached File


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Thank you for that offer! But I already went ahead and put a pigtail on it.