speakers buzzing

I just installed a factory refurbished Infinity Refrence 3004A 4-Channel Amplifier. I have the speaker connected to the amp with 14 guage ofc speaker wire, the power and grounds are 4 guage ofc. I tried to test the first speaker, and there's a constant buzzing independent of stereo volume. The...

System was fine. Have 4 components 2 tweeters hooked up to 4 passive cross overs, 2 of the crossovers only had components on them. Just wired the second pair of tweeters to those crossovers. Now when I turn the car on extremely loud buzzing humming noise comes out the the components. I then...

I installed an aftermarket system in a 2006 Honda Accord, everything works except for this Buzzing Noise. I tried every remedy in the book but couldn't get rid of this noise. The noise only comes when the key is in the ignition position (with or without engine running doesn't matter). So, if the...

i blew out one of my front speakers a couple weeks ago and it ruined my amp. there was a buzzing noise after i blew it out, with the ruined amp, and now i got a new amp from my warranty and the buzzing noise is still there. the noise is there when i have only the battery on, but not as loud. it...