Engine sound in the speakers (only at startup)

[mrbobolina]

I have an interesting thing going on. When I start the boat the speakers screach. this lasts about 1 second and then they are fine.

This only occurs if I have the sound on. The stock ground is next to the starter solonoid. I think the starter is just reverbing back to the speakers, however I am not 100% sure.

Have any of you had anything like this go on?

[EarmarkMarine]

Well, this could be a result of something wired incorrectly or a failing product. But an easy solution would be to add a relay comming off the key's momentary starting output. The relay will then interrupt either the radio or amplifier supply as to effectively mute the audio during the cranking cycle.

David
Earmark Marine