speaker problem!

[DeanoFF]

I'm getting feedback from tower speakers when I turn the motor on! Sounds fine with motor off only when the motor is on...any fixes?
Thanks

[jonyb]

Gonna need a lot more information. What equipment do you have? What boat do you have? Did you do the install? Did it just start, or has it done it from the time of install?

[Wylietunes]

Does the boat have a dual battery setup? What was factory installed when the boat was built and what was post-build installed?

[villain]

I would check your grounds and battery terminals.