Bought a new head unit the other day ( Pioneer DEH P65BT) to replace my (Pioneer DEH P6850)

All went well apart from pioneer changing their wiring loom so it wasn't just a straight plug n play swap.

After installing that and connecting everything correctly i started to get a bit of a static/ loose connection noise from the rear speakers. Now i thought it might have been from where the speakers connect on the amp that one could be lose and just touching another wire.

Pulled them all out and connected them again. still the same.

Sooo i checked everything and it still does it.

I was telling a mate about it and he said it could be the 4chan amp.

If this is the case ill just buy a new one, but id rather find out if it is the amp b4 i go do that.

Does anyone have any other ideas what it could be or is it the amp?

Thanks in advance guys, hope i explained it well enough.

Cheers
kyle.

O... OO.... OOO..... OHHHH!

not the rca track fuse?

do a quick search

the root of all the pioneer sound problems, lucky its a quick fix and the deck isnt stuffed

O... OO.... OOO..... OHHHH!

not the rca track fuse?

do a quick search

the root of all the pioneer sound problems, lucky its a quick fix and the deck isnt stuffed
Shouldn't be doing it on a brand new deck though?

Shouldn't be doing it on a brand new deck though?

Well a fuse is a fuse and if it's not up to spec or is not actually what it states, eg blows @ 2v and is labelled 3v, than yes, it will do it brand new from the machine it's made from..

But don't go nuts and put a massive fuse in there because then it's pointless, replace it with a decent quality fuse at the proper voltage. Pioneer probably bought a shietload of cheap fuses and are having problems, should be easy fix. Probably don't even have to solder anything!

Could be crosstalk of some kind, is the amp in the back and is there power wiring for it running down the same side of the car as speaker wires? Also what gauge wiring are you using on it?

I've never had any problems with pioneer headunits. :confused:

Just gotta make sure it's wired up nice to start with, I run all my rear speakers down each side of the car, and the amp wires down the centre. No crosstalk. :P

Guys don't ever plug in RCA leads with equipment on. These things happen.

Otherwise check grounds at headunit, make sure they are tight to a sanded back part of the chassis (stock ground via the loom is bad quality)

Guys don't ever plug in RCA leads with equipment on. These things happen.



thats exactly how i did mine the 2nd time!!!!

1st time was an accident, but the 2nd was my stupidity


ahhh I'll just pop the RCA back in here and hey presto!

then turn ignition from acc to start and burrrrrrrreeeeerrrrrr :doubt: oops :cry:

Off the top off my head could be a few things.

First is ground in the deck, also check the ground fuse in the deck to (pioneers tend to blow these)
Second is the connections on the back of the headunit. Did you solder then heatshrink all the connections ?
Third could be the amp, but, you said it worked fine previously, so I doubt it.

Could you discribe the noise ? It will make it easier to diagnose.

Been at work so havnt been able to reply.

Swapped decks and everything worked fine. (S_tim_ulate) you saw how the speakers were connected to the amp from the previous deck not working properly.

Changed all that around and (Only speaker wires) Turned it on and it played fine for a while then the noise came. Thought i might not have connected the wires correctly so pulled them out and screwed them in nice n tight.

Now its just there. Turn it on and approx 30 seconds later it just starts going nuts. Might try get a recording but really dont wanna unless it causes any damage to anything else.

Also it doesnt matter what volume the deck is it the noise just stays there.

how are your power wires, speaker cables and RCA's layed out?
might have to rerun your RCA's

Haven't read all comments and replies yet, but has your amp got independant gain for the speakers? If so, how high is it. If it's fairly high, try turning it down a bit and see if your problem rectifies.
I had the exact same symptoms on my system when I fitted my new head. The amp gain setting was suddenly slightly too high and I had to bring it back down to get rid of the static.

*EDIT:
PS.

Also it doesnt matter what volume the deck is it the noise just stays there.
Makes me suspect more that it's an amp / gain problem.

how are your power wires, speaker cables and RCA's layed out?
might have to rerun your RCA's

Everything is layed out the same as it was with the old deck.

Power down one side, RCA's and speakers down the other.

All power and grounds are 0ga. and RCA's are street wire RCA's.

Just pulled the deck out then and made sure all wires were together properly and check the fuse the the deck has and all was good. Turned on played nice for the 30 secs then it came, turned the HU off straight away.

I know the gains arnt high, think they are both below half on the amp. but ill turn the 2 right down and see if that makes a difference.

Id prefer it to be an AMP problem cus i dont mind buying a new one.

The current amp is a 4 Chan JBL GTO6000. Its quite a few years old which makes me think it could be that.

anyone?

You have already proved it to be your head unit, take it back and say it's faulty.

Chucked a mates spare amp in to check...................NO NOISE!!!!!!!!!

So new amp tomorrow. :D :D

What amp you looking at getting. Please say its something good :)

Bought a brand new 600 watt pioneer 4 channel amp.

GM-6300F

http://www.pioneer.com.au/files/products/medium/GM6300F@061002@H.jpg




* 4-channel bridgeable amplifier suitable for either 4-channel or 2-channel usage.

* 120 Watts x 4 channels of Maximum output (EIAJ specification).

* 60 Watts x 4 of power (RMS) at CEA-2006 specification (US system).

* Low Pass Filter (Subwoofer Crossover) for bass and High Pass Filter for full-range (conventional) speakers means that frequencies amplified are tailored to speaker capabilities.

* Speaker Level Input connects to factory-fitted decks to upgrade your system without changing the dash.

Sounds like you may have wired the amp wrong. It happens with the Audison's. If you put the Power and the Ground in the wrong one it blows the input cap on the amp.

Good luck with the install.

Same thing happend to me mate. I did everything everyone says.. working all night after school on it for 4 days straight. Reconnecting absolutely everything. Eventually i gave up once talking to someone that just said the problem is the amp.. some amps will just put out a static sound to speakers for some reason. (I have a soundstorm amp there meant to be bad aparently). So yeah no fix to the problem sometimes.

But the thing is.

Ive had the system for bout 12 months, worked great even pulled 134.7dB. The pioneer headunit decided it didnt want the rear preout to work so i basically only had sub and front preouts.

So i purchased the new pioneer head unit. changed the deck over, nothing else was touched and then the problem came.

Swapped over to a mates spare 4chan for process of elimination and turned out to be my amp.

Bought the new pioneer 4 chan amp and everything works great now.

I thought it sounded awesome b4, now its just so clear and runs so easy. Was well worth the old amp breaking ahahaha.