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!

 

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

 

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

 

Eject that Rick Astley CD from your stereo.

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

 

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

 

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

 

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

 

@ 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

 

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.

 

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.