Speaker wiring confusing me!

[phil_harry]

Hi, I have been trying to fit an aftermarket stereo to my girlfriends '91 peugeot 106 and am having a lot of trouble, wondered if any of you guys could shed any light on the subject.

The standard car has a crappy two channel stereo, but a few years ago some speakers were fitted to the rear parcel shelf proffesionally by a garage, making it four speaker.

I then bought a cd/tuner head unit from ebay and bought the correct pug - ISO wiring adaptor from halfords. Plugged it in and the unit worked fine, but I got no sound. Frustrated that I thought I had bought a duff stereo from ebay I went out and bought a brand new badass JVC stereo with all the tricks. However, when I plugged this in I had the same problem, unit lights up and works but no sound.

So powers of deduction tells me that there must be something wrong with the wiring in my pug. The weird thing is if you plug the standard radio back in the sound works fine.

I wonder whether the garage did some funny wiring trying to get 4 speakers working on a standard 2 channel fasctory stereo?

Anyone any ideas?

Cheers

Phil

 

[custard]

are you sure they havent cut wires from the back of the ISO plug?car side.

with the old stereo do you still get sound?

look onto the JVC plug diagram and find out which wires are for the speakers.
you can then run spade connections from the plug directly to the speakers bypassing the OE wiring if need be

 

[hormanncinq]

HI

Sounds like the garage have done some dodgy wiring to get four speakers like you say. Where abouts are you?

Rich

 

[phil_harry]

Managed to figure it out eventually. The garage had done something funny with the wiring but that wasn't the problem. All they had done to fit the extra two speakers in the rear shelf was to take a feed of each of the two front speakers.

The problem was that one of the front speakers was shorting out. Those little gold braided things that join the connecter to the centre of the cone was broken and resting on the metal speaker casing. It was therefore grounding itself through the door, as I unscrewed it with the stereo playing it started sparking on the door!

As for the mystery behind the old one working, it was only ever working through one side of the speakers and I hadn't noticed. The only reason I can think that the new ones didn't work at all is because they must have a safety circuit that stops them playing if a short circuit is detected.

Anyway, fixed the speaker with a soldering iron and all is well now, I have CD, RDS radio and can play my IPOD through the aux input on the front, am well happy

Cheers for your replys guys

Phil

 

[bozzy]

Well spotted that man.