anybody know what is wrong>?

[Liquid Bass 10+ year member]

ok so this is really pissing me off and iv never had this problem b4. almost every time i turn my car on, my sub makes a static grumbling sound. it stops after a while of driving but its there almost every time i start it for at least an hour. now i have figured out it is only my sub making the sound. none of my other speakers do it or show any signs of interference. what cou7ld be the problem? i have checked my rca's and made sure my wires are run correctly.

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[Liquid Bass 10+ year member]

nobody?

 

[brtnboarder3241 5,000+ posts]

made sure your ground is clean?

 

[Supergumby5000 5,000+ posts]

it is most likely a bad ground or a pinched/torn/damaged RCA.

check to make sur eyou have a clean ground

make sure there is no damage to your RCA cable.

jiggle the RCA connections on both the HU and on the amp to make sure the connection is good (with equipment on)

 

[fbi90909 5,000+ posts]

maybe the sub has a tummy ache?//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif