new headunit, no rear speaker sounds..
 

out my new headunit in last ngiht, sounds great.. but back speakers have little sound..when i faade to only rear speakers they are silent, i.e. i think the fronts (on and amp) and the rears are somehow connected together.???
rear speaker are coming out of the headunit..
front speaker are off 2 rca cables going to a 2 channel amp. i dont know how could have screwed it up? unless the wiring diagram was wrong on the pioneer booklet and the wires which i have believed were rears are actually fronts..
any ideas?

It sounds like you've wired your rear speakers to your deck's front speaker output.
I had a few similar issues until I found out that the speaker wires in my car swapped colour half way down the car!

It may feel like all yours speakers are 'connected together' as more than likely, your rears are connected to the front output, and your fronts are connected to the deck's front pre-out - so fading to rear would lower overall volume.

Take the head unit out and and connect one speaker at a time while testing balance and fader making sure it is the right speaker that's connected. (only the speakers running directly from your deck, amplified speakers seem to be properly connected)

Good luck mate.

try fading to the front, and turning your amp off so the fronts don't play. If you have sound out of the rears, you will know you've wired the rears as fronts

[QUOTE=meatbag]try fading to the front, and turning your amp off so the fronts don't play. If you have sound out of the rears, you will know you've wired the rears as fronts[/QUOTE]
Yea!! Just unplug the rca's out of the amp if it's easy and do as above to check. While you're at it grab a battery and hold the positve lead to the speaker on the positive of the battery and same for the negatives and make sure the speaker goes up. If it goes down you've got the +/- leads for the speaker back to front and it will be out of phase and sound like ass :booty:

[QUOTE=phizzle]Yea!! Just unplug the rca's out of the amp if it's easy and do as above to check. While you're at it grab a battery and hold the positve lead to the speaker on the positive of the battery and same for the negatives and make sure the speaker goes up. If it goes down you've got the +/- leads for the speaker back to front and it will be out of phase and sound like ass :booty:[/QUOTE]

can you explain this a little more ive always wondered how you can tell without physicaly seeing the rear of the speaker.

will check i think it may be just case of rears hook up incorrectly.
thanks blokes

You can look at the front of the speaker too, all you want is to see if it is moving out away from the magnet. With your speaker cables have the one with the stripe on it connected to the negative terminal on the speaker and the other end on the negative of a battery. The other wire obviously on the positive sides. When you connect both to the battery the speaker should move out/forward.

It's more or less a way to check once you've run the wires through the car and are about to solder the join to the headunit. Have a friend watching the speaker for you if you can.

ok, so i fixed the rear speaker issue, my silly not following instructions

but i am getting chronic interference through front speakers.. ie engine revs, lights on makes a terrible buzzing noise etc etc.

so i have eliminated down to the front speakers kicker amplifier. (as when not connected the rear speakers are crystal clear with no interference).
any ideas??
the amp is only connected directly to the battery and then rcas and remote cable to the head unit. i have never had this problem before..
any ideas and/or help appreciated.

what side of the car are you running the cables? might need to insulate them.

the amp cables are through the passenger side amp is under the front seat
NB: i am purely upgrading the headunit ie replacing old headunit with a new model. there were no problems with sound before hand.

if ur getting interference, its either, you have the RCA cables to close to the power cable. Ideally, they should be at least half the width of the car apart. Also, it could be the quality of your RCA's. I have bought in the past what i thought to be good quality RCA's, but it turns out they are not insulated enough. Try Stinger ones...