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static noise only when engine is on


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kbjy11 
Member - Posts: 7
Member spacespace
Joined: October 31, 2007
Posted: November 08, 2007 at 1:29 PM / IP Logged  

Hey, I just installed my system which consists of an amp and components in the front.

It sounds great, but when the engine is running there is a static sounds comming from the tweeters.

With the engine off, and running it off the battery, there is no static whatsoever.

Any ideas what the problem could be?? I checked all my leads and they are good.

i am an idiot 
Platinum - Posts: 13,666
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: November 08, 2007 at 6:48 PM / IP Logged  
pioneer radio?
kbjy11 
Member - Posts: 7
Member spacespace
Joined: October 31, 2007
Posted: November 08, 2007 at 7:42 PM / IP Logged  

yes the headunit is a pioneer..

but this static happens in cd-mode and radio mode, but only when the engine is running!

HELP please, this is driving me nuts!

i am an idiot 
Platinum - Posts: 13,666
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: November 08, 2007 at 8:06 PM / IP Logged  

You need to take a piece of 18 Ga. wire about 12 inches long,  Strip a 1/2 inch of the insulation off of each end of the wire.  Ground one end to whatever you have your radio grounded to.  Then you will need to solder the other end to the outer shiny part of your patch cord.  Patch cord = the cable that connects your radio to your amp.

kbjy11 
Member - Posts: 7
Member spacespace
Joined: October 31, 2007
Posted: November 09, 2007 at 10:41 AM / IP Logged  

hmm what exactly the purpose of doing this?

When you mean ground it to the radio do you mean slice in into ground wire in the harness?

also, this patch cable... do you mean the rca cables? Which one do I solder it to, there is the R and L. Both?

Let me know please, Thanks.

sarcomax 
Copper - Posts: 276
Copper spacespace
Joined: November 09, 2005
Location: California, United States
Posted: November 09, 2007 at 11:00 AM / IP Logged  
The purpose is to "fix" the problem that pioneer has with putting a weak fuse on the ground path for the rca's. This fuse blows very easily, and the wire just completes the circuit. You may have some other problems since it only happens when the engine is running, but with a pioneer radio, that is the first thing that i check. You may want to check your ground to make sure it is up to snuff, and also make sure your gains are set correctly. 
i am an idiot 
Platinum - Posts: 13,666
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: November 09, 2007 at 8:17 PM / IP Logged  
Ground it however you like.  Either side of the RCA cable will work   Left or Right.
kbjy11 
Member - Posts: 7
Member spacespace
Joined: October 31, 2007
Posted: November 12, 2007 at 1:47 AM / IP Logged  

this got rid of the static.

Thanks for the help! Much appreciated.


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