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hey guys,

not sure if there is a thread on this already, and to be honest i couldn't really be bothered running a search on it.

Just installed a Kenwood 350W 2 channel into the 32 to run my 6" rears, and have noticed two things wrong that were never there before:

1. ALL speakers are running as fronts. I've kept the same wiring at the back of the headunit, and they ran properly ( 2F, 2R) before i wired up the amp. RCA's are plugged into two RCA's labelled 'F' at the back of the Pioneer head unit. The other two RCA's at the back are labelled SW, for subby i assume, so i left them alone.

2. That annoying buzzz.....frequency noise that goes with the engine.

The battery cable runs down the passenger side, and the remote and RCA cables are running down the drivers side. I've checked most of the wiring to ensure that none of it is touching metal but i can't get rid of the buzzing noise.

Any help much appreciated. Thanks in advance!

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for the buzzing it could be a few things. the 2 most obvious that come to mind is

1. that by run the rca's down the drivers side thay are picking up the wiring loom. when i did my install the power cable ran down the drivers side and the rca's down the passanger.

2. the ground of the amp is picking up ground noise try grounding the amp in a diffrent location

I have my RCA's running down the passenger side, and power down the driver's side.

as for the rears running as fronts you'll need to adjust one of the SW control options. There's a lot of different settings but basically you'll need to turn SW off. (press function when the headunit is off, it should be in there).

ok guys, thanks for the replies.

I'll run the cables down opposite sides and see if there is a difference.

As for them running as fronts, i've turned off the SW option with them plugged in the (f) RCA's, should i plug them into the SW RCA's instead?

Also, i've heard that you can buy noise filters that plug up to the amp somehow - anyone know or heard of this before? Do they work?

Thanks for all the help guys.

ok you found the SW setting- good. with that setting set to full you will have rear fading.

sounds like a poineer uint to me.

if you didn't understand the above do this:

radio off acc on,hold the F key.that will bring up a menu , hit F unitil you get to the preout menu set it to full with the arrows and then F again. trun the unit on and it should be full range.

as for noise. pull the RCA cable out of the radio and listen (engine running) do you have noise? if not them the amp isn't the problem. grab a twisted pair set of RCA cables (jaycar sell them as do I, and check the cables. from there reground the radio . should get rid of the noise prob.

ok chris, thanks heaps for the help. i don't have time to do it now, so i'll do it tmrw.

One more question, and sorry if i sound like a dumbass, but should the RCA's be plugged into SW or F?

It is a pioneer head unit btw.

thanks heaps mate

I fall else fails you could try installing a sound supressor onto the amps positive line. This should remove all electrical sound interference. You can get 8 guage ones from jaycar & strathfield if you are using anything under 12 guage wire (eg if you have a proper amp wiring kit, prob 8 guage).

Its strange because most high-er market amps usually have sophisticated built in sound supressors & dont have this problem, usually occurs with the no-name 40 dolar rubbish you see at super-cheap though :uh-huh:

- Hayden

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