i installed pioneer 6x9's in the space in the back seat by melting the rim that held the 6 3/4 in leaving the space for the 6x9. screwed them in and hooked them up tested them with everything off they worked fine. put all the plastics around them back and put a cd in with alot of bass at a nice volume they sound good,till i start learning how to use my sony xpload hu. i figure out that it has a loudness button on the menu and when i turned it on the bass went and there was a lound vibrating noise,turned it off and the vibrating stayed.my friend has the same pioneer 6x9's but at a lower watt rating and had the same problem but his wires were crossed so i tried switching the wires but it didnt work,but when i had the whole plastic piece out i found out that it was the plastic piece makin the noise.i tightened the speakers to see if that was it but no luck.how do i stop the plastic speaker holder to stop makin the noise??? sorry its so long but its pissin me off whenever i listen to music

so youre getting a resonant vibration from somewhere around the speaker, right? reversing the mechanical polarity (by switching the wires around) wont help, as the same amount of force will stil be applied to the structure.

the first thing is to track down where the vibration is coming from. although it MAY seem like its coming from the contact of the speaker to the mounting point, double check that it isnt the grill, or the entire cover panel that is vibrating. it only take a small contact patch to transduce the vibration and create a loud "buzz".

once you find out where the contact is, try applying a small amount of insulation foam, non-hardening clay, or any other "shock absorbing" material between the surfaces. this should get rid of the vibration. if the energy is still being transmitted to a larger piece (such as the entire plastic panel), you can always load and damp the piece with some dynamat or similar material. this will change the resonation peak of the material and prevent it from flopping around.

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i had the whole lpastic frame that holds the speaker out and it was coming from there. i tried to tighten it but it stayed the same at first i thought it was the panel cause if you put your hand on it it wouldnt be as loud but i took the whole frame out and it did it worse than when the panel was on top if it

well, if the speaker is vibrating against the baffle that holds it, i would try and put some non-hardening clay inbeteween the two pieces. this should compinsate for any warping that the baffle has, and provide a good seal between the two.

:shhh: i do cocaine :/shhh:

where would i get some of that ??

wal-mart, crafts section.

:shhh: i do cocaine :/shhh: