Cal01

installing a HU and 2 amps. everything works fine except when the rear sub is hooked up. The sub pushes up and down but makes a weird sound...the power is coming from a gold block that spit into 2 for the amps...thats my guess..what can it be??? help!

alil2cul4u

Is it motor noise? Does it make the noise only when the car is turned on?

Cal01

no its not motor noise. its the sub woofer thats making the noise

Windsor

Eject that Rick Astley CD from your stereo.

In all seriousness, do you expect us to guess the type of noise you hear?

90runnerfan

you sure the subs not blown? also the voice coils could be bad if it is a new or used sub sounds weird though

Elton

your subs out of phase ? fancy word for one hooked up backwards

90runnerfan

just thinkin again like elton says check that too, but be sure to make sure you have a good ground i had that problem before when i didnt have a large ground cable and a good ground as well

Cal01

@ Ricky Astley...I'd be RIcked rolled like a mofo huh. haha

the speaker goes up and down when makes the noise. never seen this before. anyhow, I'm going to check the ground and speaker wire again. thanks

Cal01

well I checked and it seems that the speakers are screwed. wasn't ripped before i took them out from my last car but w/e. might of been the wires like Elton said. well, I'm picking up a 12w32v2-d2 JL subwoofer. hopefully these don't up.

Cal01

tested everthing and couldn't find the answer. opened up the amp saw some ground that off..used some foil and electric tape and its fixed. lol. thanks all.