Speakers Popping

[crazycamp]

Had this popping noise in the car since i purchased it 2 years ago.

When starting the vehicle (usually cold) after about 30s the front speaker will make a really loud popping sound (gun shot)
i can sometimes get the stereo to make the noise by changing the source from CD changer to Radio, and sometimes it happens
when i go over pot holes or uneven road.

I have put it down to a few things, the stereo needs re-earthing, the multichanger cable is loose somewhere in the system?

is this common? or should i take it to my local audio shop (good friends with owner as spent many £££££ with them on my last car)

This is the standard Upgraded 406 exec system, nothing changed.

[DaiRees]

This is another problem that's known to the 406 community, not really common but it has certainly been on here before. IIRC it was a dodgy earth on the head unit.

HTH
Dai

[Welly]

Mine does this and I can honestly say it's the only time I have genuinely been frightened/shocked

Mahoosive bang

Where the multi-pin plug goes in the back of the head unit the PCB inside the head unit has dry joints which creates the banging. I have tried supporting the loom/plug so it doesn't flap about and it works (a bit).

I think the proper cure is over on the Coupe forum.

[mbell666]

As Welton says it a connection problem on the rear on the head unit. i've tried various thing and not fixed it, i've glue gunned the wires into the connector to stop them moving, glue gunned around the connector on the radio to stop that moving, it still does it.

If you play with it too much you make the radio crackle as well, I just need a snap to complete the set!

next plan is to re-solder the joints at the rear of the head unit, but its on my list of stuff to do at some point (normally no point).

[Welly]

its on my list of stuff to do at some point (normally no point).

Have you got one of those lists too? I thought it was just me

[mbell666]

its my standard list, if things get really urgent they go on the "must be done or world will end" about 50% of the stuff on that list gets done

[teamster1975]

its my standard list, if things get really urgent they go on the "must be done or world will end" about 50% of the stuff on that list gets done

Sounds like mine too, much to my wife's annoyance!

[mbell666]

Sounds like mine too, much to my wife's annoyance!

Now i've split up with the bird its gone up dramatically, was probably round 10% before! (she did keep adding lots of stuff to it, like sorting her car out!)

[teamster1975]

Sounds like mine too, much to my wife's annoyance!

Now i've split up with the bird its gone up dramatically, was probably round 10% before! (she did keep adding lots of stuff to it, like sorting her car out!)

Tell me about it. I've got so much work to do to the car it's unreal. I've been allowed this weekend as I told her "if I don't replace the cambelt and it snaps we will be f*cked".

[crazycamp]

I have visted my local audio shop and he believes it is the head unit, he didnt believe that peugeot did a JBL speaker upgrade on the 406? he said it would be better to pull the HU out and see if its an amplified system or HU powered system. what keys do i need to remove the HU?

also the fabric in the passenger footwell has come loose (below glovebox) and needs replacing, i have noticed what looks like the car alarm situated there? is that what it is or could it be the amplifier?

any help greatly appreciated

[mjb]

also the fabric in the passenger footwell has come loose (below glovebox) and needs replacing, i have noticed what looks like the car alarm situated there? is that what it is or could it be the amplifier?

That soundproofing is horrible. I don't know how it was ever designed to stay up there! I've got some self-adhesive velcro strips on mine now.

As for the alarm looking thing under there, chances are it's the speaker from a nokia car kit. They seem quite popular - you can probably remove a load of crap relating to it too, like aerial, mic and control box. I believe (I don't have one) the JBL amp is under a front seat on some models and under the parcel shelf on others (saloons only)

[mbell666]

in mine teh jbl amp is in the boot the opposite side to the cd changer (i.e driver side). if you remove the linning you should be able to see a silver (?) metal case in frame. thats the amp.

[Welly]

Yes the amp is in the boot right hand side behind the liner.

I think the JBL amp system and speakers are good. Can't you just get the HU repaired?

Ha ha - that floppy fluffy sound mat thing is a pain. Every time I look at it it's come out of that white plastic 'gripper' clip thing.

mjb - the velcro idea is a good one!

[Captain Jack]

Ha ha - that floppy fluffy sound mat thing is a pain. Every time I look at it it's come out of that white plastic 'gripper' clip thing.

I've actually found a "solid" one at the scrappers, which is more like a cardboard thing covered in carpet. Sat very snuggly in there before I sold the car.

[steve_earwig]

I was there on my back in the dark

and no sign of Welton?
Sounds like the speaker feed's earthing out somewhere.