feedback January 11, 2011, 09:47:03 AM im getting a feedback sometimes in the car speakers, its like a heartbeat noise. for a 1986 cougar xr7 Quote Selected
feedback Reply #1 – January 11, 2011, 10:09:38 AM I know it sounds dumb but how long has it been since you changed your sparkplug wires. I've had feedback in my speakers in older cars because the plug wire were bad. Quote Selected
feedback Reply #2 – January 12, 2011, 09:26:50 AM change them yesterday-change them ever 2 years,even with low mileage Quote Selected