[wancosc356]

I picked up a am/fm radio and I wanna test it without installing it. But I have a few questions.

There is a female plug on the back side. It looks like 3 prongs. I assume one is power, one is L speaker and one is R speaker wires. Am I right and if so, which one is which?

Also, aside from hooking up a speaker...can I just run a wire from my positive battery post to the radio power plug to test it? Do I need to ground the radio to the frame or anything?

Thanks.