Sub wont stop moving!?

[Luke Kent 10+ year member]

hey guys i have an mtx sub and amp. last night when i started my car i realized my sub wasnt hitting very hard at all or even with the music. i opened the hatch and saw that my sub was just moving in and out constantly no matter what song was playing. i was hoping it was just a wiring error somewhere but im not sure why it would just start doing it randomly?

so as of now i turned the gain all th eway down in hopes of finding someone to give me a hand.

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[Twistid 5,000+ posts]

wires!!111!!11one1!!

 

[revrider1 5,000+ posts]

Ground the RCA's

 

[Ruffy 10+ year member]

thats the ultra super low frequancy -10hz

 

[Luke Kent 10+ year member]

how do i ground the RCA's?

 

[Luke Kent 10+ year member]

oh i see

but why would it just randomly start doing that?

and how do these new RCA's fix the problem?

 

[rjcourg]

where did u ground the amp??

 

[forbidden 10+ year member]

Bad ground or a now toasted amp caused by a bad ground.

 

[Luke Kent 10+ year member]

i grounded my amp in the spare tire hole. and i cleared away the spot with a buffing wheel so no paint was interfering