sound problem

[spice1]

my stock 10"sub makes a very annoying noise and gets louder every time i accelereate LINcoln Navigator some1plz tell me what to do

 

[FreeFaller]

Check your grounds on the amp...also make sure you have sheilded spark plug cables. But I'm thinking the ground on the Subs amp probably is loose or poorly placed.

 

[FreeFaller]

Also when checking the grounds make sure to clean them...sometimes a film can build up on electrical contacts and can almost act as a rectifier. Cleaning these contacts might solve the problem.

 

[Pepsi2185]

stock?? Is it a whining, a rumbling or a popping noise?