I need someone to please help.I fitted a new 29 meg radio that lasted 9 months and then the circuitry for the aerial melted. They replaced the radio after much argument. The first time I used the new one it lasted one day then started something strange. When starting the motors i get noise on the speaker. I tried rewiring etc. no difference. I sent it back again, they say the boat is a problem. If it was the boat as they say why now after 1.5 years is it starting to feed through the speaker when starting??? Please help!!!