I had one of these boards installed at Walcotts Radio shop and I think they jacked up my radio.I can't turn the echo volume wide open or I get a bumping sound through the speaker.If I have my talkback on it squeals like crazy.The radio is a 29 LTD Black Chrome.I know these boards have adjustments but I'm not sure which one to turn down.I think they turned it wide open because when I went back to pick it up,the guy said listen to this but I noticed he didn't turn it up all the way.Thanks for any and all help.
