Audio and Electronics Discuss in-car entertainment systems, audio and video systems, car alarms and other electronics topics.

Anyone experiencing Amp turn ON thump with Bose & aftermarket unit?

Thread Tools
 
Search this Thread
 
Old 10-11-2008 | 05:51 PM
  #1  
Spartuss's Avatar
Thread Starter
Senior Member
iTrader: (8)
 
Joined: Mar 2003
Posts: 638
From: Baltimore, MD
Anyone experiencing Amp turn ON thump with Bose & aftermarket unit?

I have a '99 Maxima with Bose and decided to upgrade my head unit to something more updated. I bought a Kenwood Excelon kdc-x595 with ipod, usb, and aux capability.

I also have a Metra 70-7551 amp integration harness that will allow the Bose speakers and amp to work with the aftermarket unit.

Well, I connected everything properly and am now getting a thump/pop from the speakers every time I turn the unit on and every time I switch tracks on a CD.

Has anyone experienced such issues. I called Crutchfield and they told me that I have to install a 100 ohm resistor & 2200 micro fared capacitor on the blue wire with the white stripe which I think is the "amp turn on" wire if I remember correctly.

Has anyone done this to resolve such an issue?

At first I thought it was a bad ground but checked everything and all checked out fine.
Old 10-13-2008 | 07:28 AM
  #2  
nismos14's Avatar
§è~® f®ÈÄk
iTrader: (56)
 
Joined: Feb 2003
Posts: 17,511
From: NJ
That would work, storing a charge to keep the bose amps on instead of flickering on and off everytime you change a source. Do it.
Old 10-13-2008 | 12:50 PM
  #3  
Spartuss's Avatar
Thread Starter
Senior Member
iTrader: (8)
 
Joined: Mar 2003
Posts: 638
From: Baltimore, MD
Thanks Nismos14. I remember you from my Altimas.net days.

The pop/thump in the speakers happens sometimes when the radio is turned on and almost always when I switch tracks on a CD. It does not happen when I switch radio stations on the tuner when the radio source is selected.

Do the amps flicker on and off every time I switch the track on a cd? Why does this not happen when I switch radio stations?

This is starting to irritate me since I bought a decent headunit-Kenwood Excelon with 4v pre-amp outputs and the Metra harness which I thought would sound better when paired with the 4V outputs than the Scosche harness which you have to adjust speaker levels for each of the 4 channels.

I am also having fitment issues with the Metra dash kit. Are there any good dash kits that won't leave any gaps in between the radio and the pocket. Will a OEM Maxima GXE pocket work for this setup and provide a better fit?

http://cgi.ebay.com/ebaymotors/95-99-Nissan-Maxima-Dash-Cubby-Holder_W0QQitemZ220292247607QQcmdZViewItem?hash=it em220292247607&_trkparms=72%3A727|39%3A1|65%3A12|2 40%3A1318&_trksid=p4506.c0.m245#ebayphotohosting

Thanks for the help nismos14 and to all others.

Last edited by Spartuss; 10-13-2008 at 12:53 PM.
Old 10-13-2008 | 12:52 PM
  #4  
nismos14's Avatar
§è~® f®ÈÄk
iTrader: (56)
 
Joined: Feb 2003
Posts: 17,511
From: NJ
Yes it turns the amps off in between tracks to keep from hissing.

Not sure about the kit, sorry.
Old 10-20-2008 | 06:04 PM
  #5  
1hawaii50's Avatar
Senior Member
iTrader: (14)
 
Joined: Oct 2008
Posts: 888
From: Brook Park, Ohio
I believe I read somewhere that the BOSE amps need a lower voltage turn-on lead than what the aftermarket head unit delivers, and that is why you are getting the pop. Radio Shack has a component that you connect to the turn-on lead and it lowers the voltage going to the amp. Supposedly this cures the pop issue.
Old 10-22-2008 | 09:18 AM
  #6  
Spartuss's Avatar
Thread Starter
Senior Member
iTrader: (8)
 
Joined: Mar 2003
Posts: 638
From: Baltimore, MD
Originally Posted by 1hawaii50
I believe I read somewhere that the BOSE amps need a lower voltage turn-on lead than what the aftermarket head unit delivers, and that is why you are getting the pop. Radio Shack has a component that you connect to the turn-on lead and it lowers the voltage going to the amp. Supposedly this cures the pop issue.
Can you find out what this component is and post on here. I'm sure it would benefit many.

Thanks
Old 10-26-2008 | 08:03 PM
  #7  
1hawaii50's Avatar
Senior Member
iTrader: (14)
 
Joined: Oct 2008
Posts: 888
From: Brook Park, Ohio
Unfortunately I deleted the chat log. If you call Crutchfield, they can give you the Radio Shack part number for the part.
Old 10-28-2008 | 09:02 PM
  #8  
Spartuss's Avatar
Thread Starter
Senior Member
iTrader: (8)
 
Joined: Mar 2003
Posts: 638
From: Baltimore, MD
I was told that this can be solved with a 100 ohm resistor (Radio Shack part # 271-1108) and 2200 Microfarad capacitor (Radio Shack part # 272-1048).

1hawaii50, are you saying that you only installed one part on the turn on lead that eliminated the pop?

Do the part #'s I posted above look like what you installed?
Old 11-07-2008 | 11:56 PM
  #9  
1hawaii50's Avatar
Senior Member
iTrader: (14)
 
Joined: Oct 2008
Posts: 888
From: Brook Park, Ohio
I haven't installed anything yet. I'm still getting all my parts together for the install. I had called Crutchfield and was working my way through some questions with their tech line, and the tech told me about the part. Call Crutchfield, and they can tell you what you need to get from Radio Shack.
Old 11-27-2008 | 03:32 PM
  #10  
Camaro man's Avatar
Newbie - Just Registered
 
Joined: Nov 2008
Posts: 1
Spartuss,
Sorry to thread jack but I've got a '96 camaro with a bose system and I've got the exact same problem. Have you tried this fix yet and did it work?

How exactly are the capacitor and resistor wired in? Does one need to go before the other or do I just solder them both into the amp remote line?


Thanks!

Will
Old 09-04-2010 | 03:13 PM
  #11  
YellowOne's Avatar
Senior Member
 
Joined: Aug 2002
Posts: 386
is there a diagram to wire the resistor and capacitor?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LtLeary
7th Generation Maxima (2009-2015)
16
09-14-2015 01:33 PM
Pnjboyzz
6th Generation Maxima (2004-2008)
1
09-04-2015 10:04 AM
dcardello
4th Generation Maxima (1995-1999)
7
09-04-2015 12:44 AM
A32goldylocks
4th Generation Maxima (1995-1999)
2
09-02-2015 07:39 AM




All times are GMT -7. The time now is 12:20 AM.