engine noise

[markimark]

hello everyone i have just installed new speakers and an amp in my 2006 mazda 3 sport.My speakers are pioners , my tweaters are clarion and all this is powered by a cadence amp.My problem is that i have alot of engine noise as soon its on drive.when its parked i doesnt do anymone noise. As soon as i go faster the engine noise is louder.Do you guys have any suggestions how to fix this ..ohh ya and i forgot i tried to put noise filters and there is still noise

 

[ejh]

hello everyone i have just installed new speakers and an amp in my 2006 mazda 3 sport.My speakers are pioners , my tweaters are clarion and all this is powered by a cadence amp.My problem is that i have alot of engine noise as soon its on drive.when its parked i doesnt do anymone noise. As soon as i go faster the engine noise is louder.Do you guys have any suggestions how to fix this ..ohh ya and i forgot i tried to put noise filters and there is still noise

Its your ground to the amp. Google Alternator Whine.

 

[wbmallett]

Did you run your RCA wires close to your power wire? that can cause a lot of annoying interference with the signal the amp is gettting.

 

[NateTheGreat]

Both of the above are correct, and I know this because I had both issues and had the exact same problem you're describing. Here's how I fixed mine:

1. If they aren't already, run the RCA cables to the amp down one side of the car and the power cables for the amp down the other side. My amp is under the passenger seat, and I was able to run the power cables down the side and the RCA cables through the center console without any interference.
2. Make sure your ground cable from the amp is short and the connection to the chassis is to an unpainted, relatively thick chunk of metal. I sanded a small patch around a bolt down to bare metal and bolted the ground wire to the seat mount, for example.

 

[markimark]

wow thanks guys ill try it out