Feed back from radio when I shut it off

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shawn9766

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Joined: April 28, 2006

Location: United States

Posted: April 28, 2006 at 8:04 AM / IP Logged

Feed back from radio when I shut the radio off it is comming from the bass speaker. I just added a sub and amp but when the radio is off I still get a noise from the speaker sub. What would cause this? it is fine when the radio is on.

Could this have anything to do with me changing the factory single cd to a Factory 6 disc from ford? Please help. I put the single cd radio back in and it does not make the sound, but as soon as I put the 6 disc in it has feedback whe the radio is clicked off and I drive it echos and it comes from the bass speaker.

Feed back from radio when key turned off.... I just added a sub and amp but when the radio is off I still get a voom noise from the speaker sub. What would cause this?

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: April 28, 2006 at 9:46 AM / IP Logged

I'm sure it is not feedback, unless you have a microphone in your system. I suspect either your gain is way too high or the signal to the sub amp is bad - are you using the speaker level inputs to the amp? Are you using a LOC?

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shawn9766

Member - Posts: 10

Joined: April 28, 2006

Location: United States

Posted: April 28, 2006 at 10:05 AM / IP Logged

I added an after market sub and amp to my single disc with tape deck ford factory radio, it works great, but then I changed to a factory ford pioneer six disc stereo and I am getting the loud gain noise. I never got that from the other stereo. If I turn the gain down I lose bass and the noise, but I want bass.

Feed back from radio when key turned off.... I just added a sub and amp but when the radio is off I still get a voom noise from the speaker sub. What would cause this?

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: April 28, 2006 at 10:16 AM / IP Logged

You must match the gain to the output from the head unit. When a head unit (or anything else in the signal chain) changes, amplifier gain(s) must be reset to match. There's your problem, it needs to be set correctly. Use the SEARCH function for "gain" in the topic and there are several short tutorials on this forum.

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shawn9766

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Joined: April 28, 2006

Location: United States

Posted: April 28, 2006 at 10:22 AM / IP Logged

I thank you very much for your help. I am new and this really means a lot. I have been trying for the past few days to figure this out. It works correctly on the single disc factory cd player but not on the 6 disc factory player?? All the hook ups just plug right in as well. Thank for the quick response to my listing.

Feed back from radio when key turned off.... I just added a sub and amp but when the radio is off I still get a voom noise from the speaker sub. What would cause this?

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: April 28, 2006 at 10:26 AM / IP Logged

The voltage output from the two head units will be different. The amp must be matched to the one you use. It is normal.

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shawn9766

Member - Posts: 10

Joined: April 28, 2006

Location: United States

Posted: April 28, 2006 at 10:35 AM / IP Logged

If I turn the gain down I lose bass and the noise, but I want bass. Could this have anything to do with the radio having some thing different inside? I works fine with the single cd radio.

Feed back from radio when key turned off.... I just added a sub and amp but when the radio is off I still get a voom noise from the speaker sub. What would cause this?

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: April 28, 2006 at 10:37 AM / IP Logged

shawn9766 wrote:

If I turn the gain down I lose bass and the noise, but I want bass. Could this have anything to do with the radio having some thing different inside? I works fine with the single cd radio.

NO it has to do with the gain. You must turn it down. Actually you must set it properly to match the head unit. If you do not understand this then I suggest you need to go to a shop and get some help.

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shawn9766

Member - Posts: 10

Joined: April 28, 2006

Location: United States

Posted: April 28, 2006 at 11:02 AM / IP Logged

Sorry, I will go do as you stated and see someone at a shop. thank you for all the assistance.

Feed back from radio when key turned off.... I just added a sub and amp but when the radio is off I still get a voom noise from the speaker sub. What would cause this?

shawn9766

Member - Posts: 10

Joined: April 28, 2006

Location: United States

Posted: April 30, 2006 at 2:08 AM / IP Logged

OK here is the deal, Thanks for your help, but I think I had abit of a different problem. I bought a six disc stereo factory radio because I had a factory single disc. The single disc does not make the noise and allows mwe to turn the gain all the way up for maxxx bass. BUT, the six disc will not allow me to move the gain past 1/4 quarter. If I go past 1/4th quarter it gives me feedback when turned off.... WHY??????? Is the factory wiring for these much different possibly if so can it be corrected? thanks

Feed back from radio when key turned off.... I just added a sub and amp but when the radio is off I still get a voom noise from the speaker sub. What would cause this?

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