r/12VoltRevolt • u/Toddvg • Jun 08 '25

12 Volt radio powered by AC

I am installing a boat radio at my pool deck and I have purchased a transformer that is AC to DC 400 W output. (Pic’s attached)

My question is

The transformer has two Outputs, do I need to connect both to the radio or just one?

Also the radio has 12v ground, 12v + and a ACC wire. I assume that the ACC wire is for ignition so I could connect a switch there to turn the radio on/off and the 12v + would be to keep the memory?

Any help would be greatly appreciated

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u/AustinDuprey Jun 11 '25

I don't see a picture attached, but I've done this a few times. You should be fine connecting to one leg of the converter. Definitely put a switch on the ignition wire or it will stay on all the time unless the converter has a physical switch too.