99 vette stero problem
Thread Starter
Intermediate
Joined: Aug 2007
Posts: 29
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99 vette stero problem
hi guys hey i have a 99 cp. vette alum block n heads if that makes a difference in my problem here.
i have the stock setup bose speakers and stock radio i would like to keep it. so what i did was added a sub and amp hooking up the power wire and ground wire from amp to battery. everthing works except when i trun the radio down i hear the car noise in it really bad and plus if i hit the brake or trun a signal on the sub will bounce like a big bass note has hit it . so i changed the amp it didnt help .
does any no what else to try to me it seems like i am having ground problems but the wire is hooked direclty to the ground on battery ..
give me some ideas and i will try
thanks a lot
i have the stock setup bose speakers and stock radio i would like to keep it. so what i did was added a sub and amp hooking up the power wire and ground wire from amp to battery. everthing works except when i trun the radio down i hear the car noise in it really bad and plus if i hit the brake or trun a signal on the sub will bounce like a big bass note has hit it . so i changed the amp it didnt help .
does any no what else to try to me it seems like i am having ground problems but the wire is hooked direclty to the ground on battery ..
give me some ideas and i will try
thanks a lot
Safety Car
Joined: Jul 2007
Posts: 4,333
Likes: 6
From: Louisville Kentucky
Fill out your profile and post this question in the audio/electronics section. There are some serious audio buffs over there who can answer your question. I specifically remember a thread addressing your situation so I would also try using the search function over there too. Search is your friend.
Racer
Joined: Sep 2006
Posts: 260
Likes: 1
From: Chesterfield MI
When you add an amp you should always use a chassis ground. That should help. If you use both battery cables you will likely get that whine and popping. You may still get it with a chassis ground but it is far less likely. Also, if you still have an issue after moving the negative lead from the amp to the chassis, you can add an alternator filter to help kill the problem. (Are you using low level inputs on the amp or high level inputs? If you tapped the leads from the radio, you are using low level inputs, if you tapped the leads from the speakers you are using high level inputs. It is always better to use the low level inputs into the amp whenever possible.)
Thread Starter
Intermediate
Joined: Aug 2007
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thanks
ok junkman i will do that.
and yes i taped into the leads on the back of radio i wentf rom the rear speaker right side on the back of radio then ran to amp.
i had a chasie ground i hooked it to the alumframe or the a arm under the trunk part it didnt really help this time.. they should be low level there not much voice coming in
and yes i taped into the leads on the back of radio i wentf rom the rear speaker right side on the back of radio then ran to amp.
i had a chasie ground i hooked it to the alumframe or the a arm under the trunk part it didnt really help this time.. they should be low level there not much voice coming in
Racer
Joined: Sep 2006
Posts: 260
Likes: 1
From: Chesterfield MI
ok junkman i will do that.
and yes i taped into the leads on the back of radio i wentf rom the rear speaker right side on the back of radio then ran to amp.
i had a chasie ground i hooked it to the alumframe or the a arm under the trunk part it didnt really help this time.. they should be low level there not much voice coming in
and yes i taped into the leads on the back of radio i wentf rom the rear speaker right side on the back of radio then ran to amp.
i had a chasie ground i hooked it to the alumframe or the a arm under the trunk part it didnt really help this time.. they should be low level there not much voice coming in
Thread Starter
Intermediate
Joined: Aug 2007
Posts: 29
Likes: 0
thanks seered.
i did that today i ran the ground from amp to the frame . but that made the noise even worse proble becase i am getting a true ground now so it pick up the car moter now but doesnt get any louder revving it just the same irratating noise. i even ran a etra ground from motor to frame just to make sure. and that didnt help
so do you think the alternater filter will fix the problem
i did that today i ran the ground from amp to the frame . but that made the noise even worse proble becase i am getting a true ground now so it pick up the car moter now but doesnt get any louder revving it just the same irratating noise. i even ran a etra ground from motor to frame just to make sure. and that didnt help
so do you think the alternater filter will fix the problem
Team Owner
Joined: Sep 2007
Posts: 21,915
Likes: 61
From: Miami Beach FL
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Racer
Joined: Sep 2006
Posts: 260
Likes: 1
From: Chesterfield MI
thanks seered.
i did that today i ran the ground from amp to the frame . but that made the noise even worse proble becase i am getting a true ground now so it pick up the car moter now but doesnt get any louder revving it just the same irratating noise. i even ran a etra ground from motor to frame just to make sure. and that didnt help
so do you think the alternater filter will fix the problem
i did that today i ran the ground from amp to the frame . but that made the noise even worse proble becase i am getting a true ground now so it pick up the car moter now but doesnt get any louder revving it just the same irratating noise. i even ran a etra ground from motor to frame just to make sure. and that didnt help
so do you think the alternater filter will fix the problem
Now I want to clarify what you've done. You've taken the low level outputs from behind the radio and soldered two RCA cords that connect to the low level inputs of the amplifier. If they are not soldered, you can pick up noise. If you used unshielded regular wire it will pick up noise.
Thread Starter
Intermediate
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what i have done. i have took the right rear neagitive and positve wires coming directly out of radio on the back i spliced into them NOT soldered, from those wires they run along to the amp and plug in with 1 rc. i only using 1 ch. and sub. its a 2 ch. amp but i had it hooked like this before no problems.
i have used the rear speaker wires becase they sounded like more low level then whats in the dorrs the book did not say any differnce. so i got all 4 stock speakers still hooked plus my sub. hope this clears it up
in the mean time i will go soldered thoses wires and see what happens
if you can is there a web site for that ground loop insolater if not ill just check out radio shack or somerwere
thanks
i have used the rear speaker wires becase they sounded like more low level then whats in the dorrs the book did not say any differnce. so i got all 4 stock speakers still hooked plus my sub. hope this clears it up
in the mean time i will go soldered thoses wires and see what happens
if you can is there a web site for that ground loop insolater if not ill just check out radio shack or somerwere
thanks
Racer
Joined: Sep 2006
Posts: 260
Likes: 1
From: Chesterfield MI
It will work with only one RCA, but I would recommend using both rears. There is some higher frequency bass that is in stereo and not mono that you would be losing that way. Also, most ground loop isolators utilize both channels. Here is a picture of one from Best Buy.
I sure hope this helps. The next step would be the alternator, but 9 times out of ten this will fix it.
I sure hope this helps. The next step would be the alternator, but 9 times out of ten this will fix it.
Last edited by ISeeRed; Apr 22, 2008 at 11:13 AM.
Thread Starter
Intermediate
Joined: Aug 2007
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ok guys i got it fixed it is crystel clear now.
i did ever troulbe shooting tip i got and what solved it is that i had the bose sorround/ factory in car/ and i was using the corvtte manual that told me about the speakers wich i was looking under the standered spaker set up not the bose wich i have.
i relazied the the bose is a way differnt set up and plus the bass is in the front doors not the rear like i thought plus bose has a factory amp in the doors for the bass so all along i was hooked to the rear wich was mid range thats why i had ground interfreence
now i hooked my amp rite to the sub on the door becase i couldent figure out how the wiring was on back of radio something about backfeed grounds and all sort of things from the factory amp so i just came rite off the bass in the door and ran the wire to my amp and now it sounds SWEETT . so after gutting my car i finally got it working perfect
THANKS for all the help i can sleep now . lol
i did ever troulbe shooting tip i got and what solved it is that i had the bose sorround/ factory in car/ and i was using the corvtte manual that told me about the speakers wich i was looking under the standered spaker set up not the bose wich i have.
i relazied the the bose is a way differnt set up and plus the bass is in the front doors not the rear like i thought plus bose has a factory amp in the doors for the bass so all along i was hooked to the rear wich was mid range thats why i had ground interfreence
now i hooked my amp rite to the sub on the door becase i couldent figure out how the wiring was on back of radio something about backfeed grounds and all sort of things from the factory amp so i just came rite off the bass in the door and ran the wire to my amp and now it sounds SWEETT . so after gutting my car i finally got it working perfect
THANKS for all the help i can sleep now . lol
Safety Car
Joined: Jul 2007
Posts: 4,333
Likes: 6
From: Louisville Kentucky
ok guys i got it fixed it is crystel clear now.
i did ever troulbe shooting tip i got and what solved it is that i had the bose sorround/ factory in car/ and i was using the corvtte manual that told me about the speakers wich i was looking under the standered spaker set up not the bose wich i have.
i relazied the the bose is a way differnt set up and plus the bass is in the front doors not the rear like i thought plus bose has a factory amp in the doors for the bass so all along i was hooked to the rear wich was mid range thats why i had ground interfreence
now i hooked my amp rite to the sub on the door becase i couldent figure out how the wiring was on back of radio something about backfeed grounds and all sort of things from the factory amp so i just came rite off the bass in the door and ran the wire to my amp and now it sounds SWEETT . so after gutting my car i finally got it working perfect
THANKS for all the help i can sleep now . lol
i did ever troulbe shooting tip i got and what solved it is that i had the bose sorround/ factory in car/ and i was using the corvtte manual that told me about the speakers wich i was looking under the standered spaker set up not the bose wich i have.
i relazied the the bose is a way differnt set up and plus the bass is in the front doors not the rear like i thought plus bose has a factory amp in the doors for the bass so all along i was hooked to the rear wich was mid range thats why i had ground interfreence
now i hooked my amp rite to the sub on the door becase i couldent figure out how the wiring was on back of radio something about backfeed grounds and all sort of things from the factory amp so i just came rite off the bass in the door and ran the wire to my amp and now it sounds SWEETT . so after gutting my car i finally got it working perfect
THANKS for all the help i can sleep now . lol
Glad you got it working.
Racer
Joined: Sep 2006
Posts: 260
Likes: 1
From: Chesterfield MI
You know, honestly it should have worked from behind the radio, because that is full range. The amplifiers at the corners break down the sound into mid/high and lows. I assume that your amp had a crossover in it to push only lower end bass.
Anyway, I'm glad you got it working!
Thanks for letting us know what you did!
Anyway, I'm glad you got it working!
Thanks for letting us know what you did!
Last edited by ISeeRed; Apr 25, 2008 at 08:14 AM.
Team Owner
Joined: Sep 2007
Posts: 21,915
Likes: 61
From: Miami Beach FL
