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95 camry


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zargon 
Copper - Posts: 186
Copper spacespace
Joined: January 27, 2003
Location: United States
Posted: May 14, 2004 at 4:43 PM / IP Logged  
we have a 95 camery in the shop with premium sound we have the harness but when it is hooked up we have bade background hiss that is non engine related, we tried many things like different grounding tatics, any help will be welcome.
neo 
Member - Posts: 19
Member spacespace
Joined: May 14, 2004
Location: United States
Posted: May 14, 2004 at 4:53 PM / IP Logged  

Are you sure its not engine related.  When you tap the breaks do you hear a noise?  I've had my cell phone in my car and just having it in the car caused a hiss.

Neo,Solving ALL Problems

zargon 
Copper - Posts: 186
Copper spacespace
Joined: January 27, 2003
Location: United States
Posted: May 14, 2004 at 5:00 PM / IP Logged  
no it is not engine related it is there all the time , volume down all the way the sla turned down all the way the only thing that has stoped it is the mute button but then we have no music.
neo 
Member - Posts: 19
Member spacespace
Joined: May 14, 2004
Location: United States
Posted: May 14, 2004 at 5:04 PM / IP Logged  

  it could be a natural sound that you're hearing.  I had a 99 ford ranger that kept a hiss in it all the time untill I put a filter in the line and that helped some.  Is it very loud?  Or a subtle hiss?

hawkinstaller02 
Member - Posts: 44
Member spacespace
Joined: May 13, 2004
Location: United States
Posted: May 14, 2004 at 5:05 PM / IP Logged  
go buy a ground loop isolator     $20 or so    should help get rid of noise.
Did that work???????
-Installer-
stevdart 
Platinum - Posts: 5,816
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member consistently provides reliable informationspace
Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: May 14, 2004 at 5:34 PM / IP Logged  
...background hiss...this isn't a sound that you normally hear with a ground problem, is it?  No hum?  What are you replacing in the car and what did you hook up to the harness?
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
kgerry 
Platinum - Posts: 3,455
Platinum spaceThis member consistently provides reliable informationspace
Joined: February 07, 2004
Location: Saskatchewan, Canada
Posted: May 14, 2004 at 6:12 PM / IP Logged  
sounds like it could be an incompatibility in signal matching... did you use the Metra amp integration harness?  you may need to find some way of backing down the signal level, like using a line driver and de-attenuating the signal level to match it to the factory amp....
Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979

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