Sub Giving Feedback, Not sure what to check next. . . Options

[My94RedCelica]

Quick question for you all. I tried a search but didn't find what I need. I have a Kenwood in dash DVD player connected to a Kicker CVR 12" The set up and wiring was working completely fine, but after a week I started getting horrible feedback from the sub. My friend had installed the headunit, so I went back and traced the wires. He had the RCA, remote, and power wires running together. So I seaperated the RCA's from the remote wire and I still have feedback. I checked the amp ground. moved it around a little. Now I have a humming feedback, and it gets higer pitched when I hit the gas. i'm not quite sure what to check from here, so any advice would be appreciated!

[Clipsetuner]

Ive had a similar problem, turned out one of my nosie filters burned out in my amp, other then that sounds like you've tired e everything.

DTE

[TRD6GC]

Ok, first your wires are run wrong. The POWER and RCA CANNOT be ran on the same side of the car. You have to separate those two and makes sure they never cross, and i would run the remote wire with the power not RCA's, but i do not believe it will make a difference. Also, I do not know exactly where the fuel pump on our cars are, but if you run wires over that if will give you feedback as well. If that does not work than your blew a circuit in your deck. If problem persists repost and i'll tell you what to do to check your deck's circuits. Hope this works

[Scarrell]

har har har... the common Altenator Whine.... check your ground.. that is usually the cause.... make sure you sand down the paint to bare metal. also dont cross your wires like the guy above said, this causes ground loop. find a different ground....remember it HAS to be bare metal.

[My94RedCelica]

I'm sorry I wrote that wrong. I did seaperate the remote and RCA wires from the power wire. I tried messing with the ground the other day, but tom. I'll go back in and put the ground in a different place to see what I can get.

[Digndoug]

Ok, first your wires are run wrong. The POWER and RCA CANNOT be ran on the same side of the car. You have to separate those two and makes sure they never cross, and i would run the remote wire with the power not RCA's, but i do not believe it will make a difference. Also, I do not know exactly where the fuel pump on our cars are, but if you run wires over that if will give you feedback as well. If that does not work than your blew a circuit in your deck. If problem persists repost and i'll tell you what to do to check your deck's circuits. Hope this works
[right][snapback]253909[/snapback][/right]

Dude thats all BS. you dont have to seprate, it dosnt make a fly bit of a dif. People say you do, i have done and i havnt, my car right now are both togeather one on top of the other and go right on top of the fuel pump and they work perfect.

Please do not give any false indo.Scarlle is most likly right. You could also try a ground fault interupter. I had to use one in my old dodge cause i couldnt find out what was causeing feedback and it worked perfect.

[TRD6GC]

Ok, first your wires are run wrong. The POWER and RCA CANNOT be ran on the same side of the car. You have to separate those two and makes sure they never cross, and i would run the remote wire with the power not RCA's, but i do not believe it will make a difference. Also, I do not know exactly where the fuel pump on our cars are, but if you run wires over that if will give you feedback as well. If that does not work than your blew a circuit in your deck. If problem persists repost and i'll tell you what to do to check your deck's circuits. Hope this works
[right][snapback]253909[/snapback][/right]

Dude thats all BS. you dont have to seprate, it dosnt make a fly bit of a dif. People say you do, i have done and i havnt, my car right now are both togeather one on top of the other and go right on top of the fuel pump and they work perfect.

Please do not give any false indo.Scarlle is most likly right. You could also try a ground fault interupter. I had to use one in my old dodge cause i couldnt find out what was causeing feedback and it worked perfect.
[right][snapback]254020[/snapback][/right]

Definitely not BS. Ever work with stereo's before? I have put in well over 30 systems before and helped fix many people with this exact problem. Maybe if you only have 8 gauge power wire and cruddy RCA's then it won't matter. If your running anything higher than 4 gauge wire and your amps runs higher than around 800 watts it most likely will cause problems, test it yourself. If they are ran on the same side w/no problems you may have very little feedback you can't hear, which is not good for your subs either. As far as the fuel pump problem goes, thats is also true. My friend has a competition stereo that was putting out weird feedback and we didnt know why, turned out the wires ran over the fuel pump. This was told to me that it may cause problems by MANY different audio stores. And the bad ground is a very good idea that might be correct. I was just trying to help out through my past experiences. And it would be appreciated if you do not give any false info.

[Scarrell]

some vehicles just suck for stereo's but uh... some cars are different... but Usually the altenator whine is caused by the ground..... some cars will get them No Matter what they do... and some wont get any at all.... mine has a Little one.. but i have to have the windows up and stereo down and go less than 20 to hear it.. so i am not goin to mess with it.. some of my friends have the whine pretty bad.. but thats their problem

[Digndoug]

Ok, first your wires are run wrong. The POWER and RCA CANNOT be ran on the same side of the car. You have to separate those two and makes sure they never cross, and i would run the remote wire with the power not RCA's, but i do not believe it will make a difference. Also, I do not know exactly where the fuel pump on our cars are, but if you run wires over that if will give you feedback as well. If that does not work than your blew a circuit in your deck. If problem persists repost and i'll tell you what to do to check your deck's circuits. Hope this works
[right][snapback]253909[/snapback][/right]

Dude thats all BS. you dont have to seprate, it dosnt make a fly bit of a dif. People say you do, i have done and i havnt, my car right now are both togeather one on top of the other and go right on top of the fuel pump and they work perfect.

Please do not give any false indo.Scarlle is most likly right. You could also try a ground fault interupter. I had to use one in my old dodge cause i couldnt find out what was causeing feedback and it worked perfect.
[right][snapback]254020[/snapback][/right]

Definitely not BS. Ever work with stereo's before? I have put in well over 30 systems before and helped fix many people with this exact problem. Maybe if you only have 8 gauge power wire and cruddy RCA's then it won't matter. If your running anything higher than 4 gauge wire and your amps runs higher than around 800 watts it most likely will cause problems, test it yourself. If they are ran on the same side w/no problems you may have very little feedback you can't hear, which is not good for your subs either. As far as the fuel pump problem goes, thats is also true. My friend has a competition stereo that was putting out weird feedback and we didnt know why, turned out the wires ran over the fuel pump. This was told to me that it may cause problems by MANY different audio stores. And the bad ground is a very good idea that might be correct. I was just trying to help out through my past experiences. And it would be appreciated if you do not give any false info.
[right][snapback]254035[/snapback][/right]

Yes I have worked sold and installed stereos before. It does not make a dif.

Also you should might wanna mention why it might. Its the fact of useing both cheap power and rca cables. If you use proper shealed wires then you'll be fine. Not all rcas are shielded then you might get feedback, which is caused from freq cross from the main power. I have also prolly installed over 40 steros and help with over 100 from when i worked at bestbuy.

Next time you want to make a coment that is not 100% true. back it up with reason.

Its not a greta idea to runt hem togeather, but if you have the right wires, which you should. It will be 100% fine.

EDIT: ALso Im running 4 gauge with a 900 watt RMS amp. It works perfect

This post has been edited by Digndoug: Mar 7, 2005 - 12:00 AM

[TRD6GC]

Ok, first your wires are run wrong. The POWER and RCA CANNOT be ran on the same side of the car. You have to separate those two and makes sure they never cross, and i would run the remote wire with the power not RCA's, but i do not believe it will make a difference. Also, I do not know exactly where the fuel pump on our cars are, but if you run wires over that if will give you feedback as well. If that does not work than your blew a circuit in your deck. If problem persists repost and i'll tell you what to do to check your deck's circuits. Hope this works
[right][snapback]253909[/snapback][/right]

Dude thats all BS. you dont have to seprate, it dosnt make a fly bit of a dif. People say you do, i have done and i havnt, my car right now are both togeather one on top of the other and go right on top of the fuel pump and they work perfect.

Please do not give any false indo.Scarlle is most likly right. You could also try a ground fault interupter. I had to use one in my old dodge cause i couldnt find out what was causeing feedback and it worked perfect.
[right][snapback]254020[/snapback][/right]

Definitely not BS. Ever work with stereo's before? I have put in well over 30 systems before and helped fix many people with this exact problem. Maybe if you only have 8 gauge power wire and cruddy RCA's then it won't matter. If your running anything higher than 4 gauge wire and your amps runs higher than around 800 watts it most likely will cause problems, test it yourself. If they are ran on the same side w/no problems you may have very little feedback you can't hear, which is not good for your subs either. As far as the fuel pump problem goes, thats is also true. My friend has a competition stereo that was putting out weird feedback and we didnt know why, turned out the wires ran over the fuel pump. This was told to me that it may cause problems by MANY different audio stores. And the bad ground is a very good idea that might be correct. I was just trying to help out through my past experiences. And it would be appreciated if you do not give any false info.
[right][snapback]254035[/snapback][/right]

Yes I have worked sold and installed stereos before. It does not make a dif.

Also you should might wanna mention why it might. Its the fact of useing both cheap power and rca cables. If you use proper shealed wires then you'll be fine. Not all rcas are shielded then you might get feedback, which is caused from freq cross from the main power. I have also prolly installed over 40 steros and help with over 100 from when i worked at bestbuy.

Next time you want to make a coment that is not 100% true. back it up with reason.

Its not a greta idea to runt hem togeather, but if you have the right wires, which you should. It will be 100% fine.

EDIT: ALso Im running 4 gauge with a 900 watt RMS amp. It works perfect
[right][snapback]254050[/snapback][/right]

True on most parts, but even if you have good wires you still might get that feedback. I have worked with good wires and still had a problem. I have a competition stereo i did all myself and i had very little feedback. My power crossed the RCA's once without even touching, couldnt get around it because of the way my setup is, i had to re-run them and many other things and problem was solved. And i have good wires, Monster Competition RCA's and Tsunami zero gauge

Dude thats all BS. you dont have to seprate, it dosnt make a fly bit of a dif.

Its not a greta idea to runt hem togeather

And you contradicted yourself, so make sure your comments are 100% true as well.

When it domes down to it, every car and setup are different and all have different problems and reasons for them, unfortunately things are not as simple as we all wish they were.

And judging with your setup i would assume you probably have some kind of feedback so low you never hear it, if you dont then IDK, like i said every setup is different.

And guess i just felt that saying they should be separated was enough info. Afterall people are looking for help because they may not have enough experience with stereos, don't want to confuse them with giving too much info. like frequency cross from the main power. Most people just wanna know how to fix the problem. Next time i'll include reason.

[Digndoug]

I more or less simple ment, I have been told that they should be, but that was just hear say. I have done it, and sometimes i havnt. I didnt on my car/celi, just cause the first time i ran the wires i cam short. but I have never had a problem, thereforth it dosnt matter. But im also using all high end rockford wiring.

Also if its so low that i cant hear it, I dont think that counts.

When it comes down to it, just use good wiring.

Also have you heard of any thing such as a ground fault intruptor? Its somthing like that. I used it on my old car setup and it helped a lot with feedback. It only costy like 10 bucks too. its just inline with the rca's.

[TRD6GC]

Cause you can't hear it doesn't mean your subs not getting the feedback.

When dealing with cars you should always get the better product, go big or go home. Even the best stuff doesn't work though, but your right it helps, sometimes tremendously.

I also say better safe than sorry, knowing they are run separately would just eliminate that "possibility" and then you can move on from there. If it stops then your good, if not then move on to the next possible problem. If SOME people have had a problem then it's always a possibility.

I have heard of a ground fault interuptor, though i have yet to work with one.

[spunky393]

You guys never mentioned the fact that if you're power amp cable is running by electronics in the engine bay, you may here a lot of commotion from that. (example, running your power wire on the celi from the battery right across the spark plug wires or distributer cap)

[Digndoug]

You guys never mentioned the fact that if you're power amp cable is running by electronics in the engine bay, you may here a lot of commotion from that.  (example, running your power wire on the celi from the battery right across the spark plug wires or distributer cap)
[right][snapback]256701[/snapback][/right]

Well that would be just STUPID to run your power cable over the engine, I assumed and hoped we didnt have to go that far.

but yes that coudl cause problems.