No Output From Speaker Outputs

[AngryPossum]

I just tried to install 2 of the same Am/Fm Cd Players in my boat (not sure of brand name now, I will post later), one at a time obviously....
They were given to me from my friend, who had kept them in its original box etc and in pristine condition. He gave me 2 of them same model #s. They both power up and show modes etc, but I'm not getting any output from the speaker connections. I tested the speakers and they work. When I run a multimeter to the speaker outputs, I'm getting nothing. I tested the speakers out in my home stereo unit and they work. What am I doing wrong. *"Do I have to mount it to a chassis, if so my boat doesn't have a chassis, it has a plastic box under the dashboard that it slides into.

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[AngryPossum]

I guess I can buy a brand new one on Amazon, and if it still happens I can send it back. Nothing loss nothing gained.

 

[Firewalker]

Some models in the settings have a setting where you can turn the Internal Amp on or off. Make sure it is set to on.

 

[AngryPossum]

Some models in the settings have a setting where you can turn the Internal Amp on or off. Make sure it is set to on.

Thanks I'll check that.

 

[Firewalker]

Umm boats don't charge a battery? Where do you come up with that? That is one wrong answer flat out. Outboards can charge off the stator and some have a actual alternator. I/O's start out as a car engine with modifications done for the water and use alternator as well just like a car.Only thing different about a boat is that you should use marine amplifiers and head units. We were doing systems in our boats back in the '80s. Including IB subwoofers sometimes or if the boat had a lot of room underneath the back seating you could use that and then enclose them to make a sealed setup and no water would get in.

Also he is buying a new marine head unit so he has moved on from this.