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need ideas for a wagon audio install... started over again 

 

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 Post subject: need ideas for a wagon audio install... started over again
Posted: Mon Jan 31, 2005 7:38 pm 
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I previously had a jaycar response 150x2RMS amp, running a response 300Watt RMS 15" sub... that was enough rattling, to sell the amp, and the sub, and now I need to find a way to do the new install without any rattling


the interior is almost stripped at the back, ready for installation.. I'm thinking maybe a piece of thick MDF wood at the back from left to right, cut to shape, covering the last spare wheel opening... and have 2x10"'s.. and then 6x9's in the side panels in the wagon.. and the speaker grilles for each one, cos I have a matteress which goes into my wagon(cut to size)... how does that sound? any ideas on the tailgate while its all stripped? how would I deaden it, is it something I can do myself?

I have the headunit still (its a JVC MP3 head deck, and the JVC rears, Ill probably replace with something more powerful, I could barely hear them over the sub. But basically the sub and 6x9's install and deadning Im mostly interested in.


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Posted: Mon Jan 31, 2005 10:51 pm 
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The tailgate needs heavy sound deadening. I'm about to attack mine.
Because I've got LPG my spare wheel is up and off to the side.
I'm gunna make a custom sub box that fits up against the back seat and is short enough to not cover the peice of wood that lifts up to get into the spare wheel pit (where I often store stuff).

 

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Posted: Mon Jan 31, 2005 10:58 pm 
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What does this heavy sound deadning involve? you doing it yourself?


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Posted: Mon Jan 31, 2005 11:09 pm 
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justfordima wrote:
What does this heavy sound deadning involve? you doing it yourself?


You can buy foam mat stuff that you cut to shape and stuff in there.
Or stuff in a spray can. I'm gunna try the spray stuff first, see how much it improves then the mat stuff. Just because it's cheaper!

 

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Posted: Mon Jan 31, 2005 11:12 pm 
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lol, ok... keep me posted, so I know which stuff to get.


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Posted: Wed Feb 02, 2005 7:19 pm 
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I love the ford wagons for there rattles and squeaks.

The only way to shut the things up is the following.

Start with the tail gate.
By some sound deading matting (jaycar sell it, so does autobarn and just about any car audio place). Glue this matting to the inside of as much of the tailgate as possible. Then cover it in sound deadening paint making sure to seal around the matting. If you dont seal it up properly and water gets behind it, its a haven for rust.

The insides of the quaterpanels are the same.

The floor needs one layer of the matting and a coat of paint.

The roof also needs matting but no paint. Try and get some acoustic polyester sound batts from a plaster place (csr or boral, even bunnings), tear it up and stuff it under your roof lining.

Ive done this to 2 wagons that i have put installs in and has worked everytime.

It also pays to do your doors the same way.

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Posted: Wed Feb 02, 2005 10:59 pm 
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Cheers for that... sound deadning material... does that just stick on? use some sort of glue?

sound deadning paint comes with the material? or I can buy it from the same place? how much is all this roughly?


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Posted: Thu Feb 03, 2005 3:34 pm 
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generally sound deadening matt is sticky on one side.
paint you should be able to get from anywhere that sells the matting
and to be honest, its pretty expensive, but well worth it.
from jaycar its around $20 a sheet, which is rougly 600mmx300mm

 

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Posted: Thu Feb 03, 2005 6:51 pm 
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that doesn't sound too bad... I'll give it a go... does the tail gate need to be filled in with that stuff? or just stick it on all the walls inside the tailgate?


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ps - ChoCo - when'd you get your new ride? how is it?

 

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Posted: Thu Feb 03, 2005 9:14 pm 
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Theres three types of sound deadener.

You want the one with a sticky side, jaycar do sell it.
The sound deadener paint comes from bunnings, autobarn, bursons etc.

Just line the walls of the tailgate. I did the inside wall of the tail gate with 2 layers of matting and then painted it. The outside i just did one layer. This did really well.

You will notice a difference in the rattles from the back end but better results are achieved with the same treatment to the rest of the backend.

Another thing i have found that works (i haven't done it in a car i have done yet), the stuff i mentioned to put in the roof, rap up tightly in plastic (glad wrap works good) and make it water tight. You then stuff this down in the tailgate. The reason i haven't done this yet is that if water gets between the plastic and the panel it may rust. I haven't seen it do it but it might. The idea of rapping the stuff in plastic is to stop the water staying in the tailgate but i'm not sure. Give it a go and just keep checking it for rust.

The matting method is flawless if it is done rite the first time.
Be carefull with the matting as once its on it can be a pain to get off.

Have fun.

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Posted: Fri Feb 04, 2005 7:48 am 
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Ok, thanks for that... but with the roof, I thought it might be betterto use that space invaders or whatever it is they use in the boot of a sedan? cos the gap isn't all that big, between the roof, and the beams that accross.. :?:

Also with stuffing the sound deadining with plastic wrapped, you say water gets in there.. Ive never had water get in mine :!:

and one more things, how much heavier is the car after all this.. how much do these mats weigh? and how many of the $20 would I need, for the tailgate, sides and roof?

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Posted: Fri Feb 04, 2005 8:10 pm 
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The fluffy stuff im talking about will squash up really small. That space invader stuff works well but can be a pain if you ever need to remove it.

The matting is quite heavy, the reason for this is because its designed to stop sound waves travelling through it and deaden what it sits against (stop the panels from vibrating).

I would allow about 250 to do the lot. Sounds like alot but its well worth it.
Its also a hard job to do and can't be rushed.

Some tailgates arn't sealed properly from production so water gets in. If you dont have any water then your laughing, just stuff it straight in.

If you cant afford to buy the matting required and dont have water in any of your panels just stuff as much of the fluff as possible in your panels. Its not as good as the matting but it will stop some of the rattles.

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Posted: Sat Feb 05, 2005 11:57 pm 
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I used to own a XF Ghia wagon, stock XF wagons don't have much noise insulation in those but ghias had plastic bags of cotton waste (genuine Ford not home made LOL) and thicker tar mats stuck everywhere, even the rear floor mat is thicker with a tar layer going through it, they were far better than stockers but I was amazed in just test filling the tailgate with rags how much road and stereo vibration noise was reduced.

So my next wagon will be done the way "Pane" said.

BTW I found how to fix me hearing the noises in my XF, I fitted a 351C and sports exhaust, sounded heaps better, I didn't know what I was complaining about. :wink:

 

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Posted: Sun Feb 06, 2005 1:49 pm 
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thanks for the ideas guys... $250 sounds decent.

Damage - you fitted a 351C to an XF? lol.. crazy


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Posted: Sun Feb 06, 2005 9:38 pm 
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Ps 6 X 9's with subs are wrong mmmmkay !

 

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