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Fixing the OEM Subwoofer 'POP'.

Fixing the OEM Subwoofer 'POP'.

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  #1  
Old 03-19-2009, 12:50 PM
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Fixing the OEM Subwoofer 'POP'.

OK. What is the correct way to do this? I have searched through these forums and this is what I have found:

Originally Posted by KCAutosound View Post
Make sure you put a 5K ohm resister in line for the remote turn-on wire or else you will get a thump when the radio turns on or off.
Originally Posted by nothinbutaford View Post
Sorry truckskills but the factory sub needs a 5volt turn on signal, thats why the sub thumps on turn on. The tech needs to install a 1.5k ohm resistor in line on the remturn on. This will cure most if not all the pop.
Originally Posted by I12AV82 View Post
I just did that last night - tie the two blue/white wires on the harness together, then connect them to the blue/white output on the back of the D3, but put a 1k ohm 1/4watt resistor inline - that should fix the popping!
Originally Posted by ClemsonTiger150 View Post
Here is the information I got from crutchfield when I asked about my factory sub system.

"The factory stereo only sends 5V to the sub amp. When an aftermarket stereo is installed, there may be a turn on/off pop from the subwoofer. To avoid this, a 12V to 5V regulator can be installed on the remote lead. The Radio Shack part is 276-1770. (This regulator has three terminals: the first is the input, the second is the ground and the third is the output. The regulator produces a large amount of heat for its size and should be bolted or screwed to a clean metal surface that will act as a heat sink)."
These are just some of the solutions I found. Can anyone tell me which one of these (or any others) is the 'best' solution for the subwoofer pop problem?

Or, maybe this unit for $11.99 is the way to go?
http://www.sminntech.com/ampinterface.html
 
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  #2  
Old 03-19-2009, 01:03 PM
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This is what I did for a buddy of mine and it worked. I think this is what most of the ppl have done.
 
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  #3  
Old 03-19-2009, 01:45 PM
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Originally Posted by pmason718 View Post
This is what I did for a buddy of mine and it worked. I think this is what most of the ppl have done.
Sorry, but which one of those is the one you did?
 
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  #4  
Old 03-19-2009, 01:50 PM
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  #5  
Old 03-19-2009, 05:52 PM
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I went to radio shack, spent 2 bucks for a few 4300k .5 watt resistors. Wired on into the remote wire on the deck and never had any pops. I ditched the stock sub shortly after, but it never popped when i had it.
 
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  #6  
Old 03-20-2009, 08:35 AM
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Thanks for the replies.

The voltage regulator seemed like the best solution, so I went ahead and ordered the pre-wired version from SMinnTech. It should make the install a little easier since the wires are already soldered unto the regulator leads. They also add capacitors to the input/output leads to prevent oscillation on the output side. Just a little extra protection for the sub amp.
 
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  #7  
Old 03-22-2009, 01:53 AM
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The guy that makes those is a pretty good guy.
 
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  #8  
Old 03-23-2009, 01:03 PM
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Originally Posted by Low_e_Red View Post
The guy that makes those is a pretty good guy.
And fast too. Picked up the package from the post office today. It was there on Saturday, but I didn't get to the PO to pick it up.

Will probably install it tomorrow, along with the antenna 'Y' adapter.

 
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  #9  
Old 03-24-2009, 05:01 PM
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Everything is in!

No more 'pop' when I turn the system on.

Got both the built in tuner and the HD tuner attached to the antenna. Both work great!

I also picked up the CD-R55 remote control, what the heck, right?
 
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  #10  
Old 03-30-2009, 03:42 PM
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This is good to know.

Thanks for sharing the information and the link.
 
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  #11  
Old 04-08-2009, 07:40 AM
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Worked for me too

I installed this fix.

Head unit is a Pioneer AVIC F900BT with the stock Ford subwoofer. It would "pop" when the key was turned to the on position.

The voltage regulator was installed (Radishack part number 276-1770 - Model 7805 - $1.67) as shown. No more pop. Works perfectly.

Matt
 
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  #12  
Old 09-08-2009, 01:37 AM
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Anyone know the link to some photos of how this is wired up.
 
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  #13  
Old 01-02-2010, 06:02 PM
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Anyone know the link to some photos of how this is wired up.
ditto... or to be more specific, does anyone have a link to the wiring diagram or pic of the wiring harness of a stock hu?
 

Last edited by sanhozeezee; 01-02-2010 at 06:05 PM.
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  #14  
Old 03-03-2010, 05:10 PM
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Looking for how that's wired also....
 
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  #15  
Old 03-02-2011, 02:29 PM
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I hate to delve back into a 2-year-old topic, but this is the issue I'm faced with. I know I need a voltage regulator, but I'm a little confused as to what amperage is needed for the subwoofer 'pop' fix.

A lot of the '7805' voltage regulators that I come across (we don't have Radio Shack in Canada anymore) are 1.5A, while I see some that are 1.0A. Does the amperage even matter? I know it has to be +5V, but I need to know if it matters what amp rating I buy.

Thanks, guys!
 
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