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Bruce
 
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Default Is this common practice?

Hello,

I recently had a 4 channel amp installed at a local Circuit City.
Instead of running new speaker wire from each speaker back to the amp,
the installer ran new speaker wire from the amp and patched it into
the factory speaker harness under the dash (the factory speaker
harness is no longer connected to the speaker outputs on the head
unit). Is this an acceptable practice? I am getting a significant
amount of engine noise but I don't know if the two are necessarily
related. It seems like a lazy way of doing things but I don't know
enough about it to know if it's a bad way of doing things, i.e., if I
should expect new wire to be installed from each speaker back to the
amp or if this in and of itself could introduce a ground loop (it's a
97 Toyota RAV4 if that makes any difference). Any experienced
opinions are greatly appreciated...thanks!

Bruce
  #2   Report Post  
KaeZoo
 
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Default Is this common practice?

As long as the connections are done right, it doesn't hurt anything. Why
run new wire into the doors when there's a perfectly good wire already
there? It's very unlikely that this is related to your engine noise.

I'd take the car back to Circuit City (or a different Circuit City) and ask
them to track down the noise.

"Bruce" wrote in message
om...
Hello,

I recently had a 4 channel amp installed at a local Circuit City.
Instead of running new speaker wire from each speaker back to the amp,
the installer ran new speaker wire from the amp and patched it into
the factory speaker harness under the dash (the factory speaker
harness is no longer connected to the speaker outputs on the head
unit). Is this an acceptable practice? I am getting a significant
amount of engine noise but I don't know if the two are necessarily
related. It seems like a lazy way of doing things but I don't know
enough about it to know if it's a bad way of doing things, i.e., if I
should expect new wire to be installed from each speaker back to the
amp or if this in and of itself could introduce a ground loop (it's a
97 Toyota RAV4 if that makes any difference). Any experienced
opinions are greatly appreciated...thanks!

Bruce



  #3   Report Post  
Quigmeister Quigolator Quiganology
 
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Default Is this common practice?

Instead of running new speaker wire ....... patched it into
the factory speaker harness under the dash

Is this an acceptable practice?

No (unless your talking about a 20 watt per channel amp, which would be
pointless given
your new head unit has at least that much power.

Here's what you do.
Go back to the sales department.
Tell them you have a a 75 x 4 (or whatever amp)
Ask if 20 ga wire (your stock wiring) is adequate,
or should you purchase heavier wire.

After he sells you on the merits of thicker wire,
ask to see a mananger.

Have the salesman repeat what he told you in front of the manager.
Pull out your receipt and ask why your amp was installed the way it was.

I am getting a significant
amount of engine noise but I don't know if the two are necessarily
related.


Highly unlikely

It seems like a lazy way of doing things

it is



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  #4   Report Post  
RG
 
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Default Is this common practice?


"Quigmeister Quigolator Quiganology" wrote in
message ...
Instead of running new speaker wire ....... patched it into
the factory speaker harness under the dash

Is this an acceptable practice?

No (unless your talking about a 20 watt per channel amp, which would be
pointless given
your new head unit has at least that much power.



Can you put this in terms of reference vis a vis the actual effects of using
the "20 guage" wire versus the 16 guage ? In short, I think you will find
that such a short run of factory speaker wiring will have little in the way
of "adverse" effects, even when using a 75w amplifier.

- RG


  #5   Report Post  
Sanitarium
 
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Default Is this common practice?

I cant say how common it is. I personally have never done it this way.
I run generic 12 gage directly from the amp, to the doors through the
factory rubber gromets.
I dont think this is the source of the engine noise. From my
experience, all my noise problems were picked up though the RCA cables.

Garrett

Bruce wrote:

Hello,

I recently had a 4 channel amp installed at a local Circuit City.
Instead of running new speaker wire from each speaker back to the amp,
the installer ran new speaker wire from the amp and patched it into
the factory speaker harness under the dash (the factory speaker
harness is no longer connected to the speaker outputs on the head
unit). Is this an acceptable practice? I am getting a significant
amount of engine noise but I don't know if the two are necessarily
related. It seems like a lazy way of doing things but I don't know
enough about it to know if it's a bad way of doing things, i.e., if I
should expect new wire to be installed from each speaker back to the
amp or if this in and of itself could introduce a ground loop (it's a
97 Toyota RAV4 if that makes any difference). Any experienced
opinions are greatly appreciated...thanks!

Bruce



  #6   Report Post  
Paul Vina
 
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Default Is this common practice?

Not all cars have grommets. A lot of Fords and all of the VW's I've owned
have molex plugs which can be a bitch to run wires into. A Honda has
grommets and you usually need to take the doors off to run wires into them.
Almost every shop I've worked at or shopped at runs the wires to the
existing wires in the dash. With such a short run it won't hurt anything.

Paul Vina


"Sanitarium" wrote in message
...
I cant say how common it is. I personally have never done it this way.
I run generic 12 gage directly from the amp, to the doors through the
factory rubber gromets.
I dont think this is the source of the engine noise. From my
experience, all my noise problems were picked up though the RCA cables.

Garrett

Bruce wrote:

Hello,

I recently had a 4 channel amp installed at a local Circuit City.
Instead of running new speaker wire from each speaker back to the amp,
the installer ran new speaker wire from the amp and patched it into
the factory speaker harness under the dash (the factory speaker
harness is no longer connected to the speaker outputs on the head
unit). Is this an acceptable practice? I am getting a significant
amount of engine noise but I don't know if the two are necessarily
related. It seems like a lazy way of doing things but I don't know
enough about it to know if it's a bad way of doing things, i.e., if I
should expect new wire to be installed from each speaker back to the
amp or if this in and of itself could introduce a ground loop (it's a
97 Toyota RAV4 if that makes any difference). Any experienced
opinions are greatly appreciated...thanks!

Bruce



  #7   Report Post  
Paul Maxson
 
Posts: n/a
Default Is this common practice?

X-No-Archive:yes


That was a good idea, I'm gonna save that one tucked away for next time
I am in a situation like that. That would be a blast (yeah I'm cruel like
that)
because they do try and cut corners in the install area and sell you too
much stuff.
~«©¿©»~

http://home.comcast.net/~wegetourmai...ome.html-.html
No. Try not.
Do or do not, there is no try.
Max

"Quigmeister Quigolator Quiganology" wrote in
message ...
Instead of running new speaker wire ....... patched it into
the factory speaker harness under the dash

Is this an acceptable practice?

No (unless your talking about a 20 watt per channel amp, which would be
pointless given
your new head unit has at least that much power.

Here's what you do.
Go back to the sales department.
Tell them you have a a 75 x 4 (or whatever amp)
Ask if 20 ga wire (your stock wiring) is adequate,
or should you purchase heavier wire.

After he sells you on the merits of thicker wire,
ask to see a mananger.

Have the salesman repeat what he told you in front of the manager.
Pull out your receipt and ask why your amp was installed the way it was.

I am getting a significant
amount of engine noise but I don't know if the two are necessarily
related.


Highly unlikely

It seems like a lazy way of doing things

it is



www.MAINSTREET-AUDIO.com
~ ~ ~ Where SERVICE never goes out of style ~ ~ ~

V I S I T O U R F O R U M
http://63.74.14.174/forum/phpBB2/index.php



  #8   Report Post  
SentraStyleEMW
 
Posts: n/a
Default Is this common practice?

Did you pay to have the wire run directly to the speakers? Probably not, most
shops like CC or BB will do it if you want them to...but they will charge extra
for it. And unless your running an insane amount of power, the 20 g. wire
will be sufficient for what it is doing.
  #9   Report Post  
David Dunford
 
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Default Is this common practice?

I worked at CC and they will charge to run new speaker wire to each speaker...
David Dunford
'99 Polaris Scrambler 400
Fender P-bass

  #10   Report Post  
Kevin McMurtrie
 
Posts: n/a
Default Is this common practice?

In article ,
(Bruce) wrote:

Hello,

I recently had a 4 channel amp installed at a local Circuit City.
Instead of running new speaker wire from each speaker back to the amp,
the installer ran new speaker wire from the amp and patched it into
the factory speaker harness under the dash (the factory speaker
harness is no longer connected to the speaker outputs on the head
unit). Is this an acceptable practice? I am getting a significant
amount of engine noise but I don't know if the two are necessarily
related. It seems like a lazy way of doing things but I don't know
enough about it to know if it's a bad way of doing things, i.e., if I
should expect new wire to be installed from each speaker back to the
amp or if this in and of itself could introduce a ground loop (it's a
97 Toyota RAV4 if that makes any difference). Any experienced
opinions are greatly appreciated...thanks!

Bruce


That's normal. Besides, I've seen what happens when an electronics
store installer runs their own speaker cables. It's a frightening
sight. One guy punched about 30 sheet metal holes in a friend's Jeep
for nylon tie-downs. The sharp backs of the holes shredded the speaker
wires in a few weeks and it was a total do-over. Plus there were all
those sharp edged holes in the car.

Engine noise is coming from the connection between the head unit and
amplifier. The installer may have used a cheap speaker connector
adaptor rather than making line-level connections.


  #11   Report Post  
Sanitarium
 
Posts: n/a
Default Is this common practice?

I see... My accord does have grommets, large soft rubber ones that
easily accomodate additional heavy gage wire. They are difficult to
access, but I was able to do it with with a little elbow grease and
without removing the doors. Heres a pic...

Garrett

http://images.ofoto.com/photos199/4/...5405_0_ALB.jpg

Paul Vina wrote:

Not all cars have grommets. A lot of Fords and all of the VW's I've owned
have molex plugs which can be a bitch to run wires into. A Honda has
grommets and you usually need to take the doors off to run wires into them.
Almost every shop I've worked at or shopped at runs the wires to the
existing wires in the dash. With such a short run it won't hurt anything.

Paul Vina

"Sanitarium" wrote in message
...
I cant say how common it is. I personally have never done it this way.
I run generic 12 gage directly from the amp, to the doors through the
factory rubber gromets.
I dont think this is the source of the engine noise. From my
experience, all my noise problems were picked up though the RCA cables.

Garrett

Bruce wrote:

Hello,

I recently had a 4 channel amp installed at a local Circuit City.
Instead of running new speaker wire from each speaker back to the amp,
the installer ran new speaker wire from the amp and patched it into
the factory speaker harness under the dash (the factory speaker
harness is no longer connected to the speaker outputs on the head
unit). Is this an acceptable practice? I am getting a significant
amount of engine noise but I don't know if the two are necessarily
related. It seems like a lazy way of doing things but I don't know
enough about it to know if it's a bad way of doing things, i.e., if I
should expect new wire to be installed from each speaker back to the
amp or if this in and of itself could introduce a ground loop (it's a
97 Toyota RAV4 if that makes any difference). Any experienced
opinions are greatly appreciated...thanks!

Bruce

  #12   Report Post  
Paul Vina
 
Posts: n/a
Default Is this common practice?


"Sanitarium" wrote in message
...
I see... My accord does have grommets, large soft rubber ones that
easily accomodate additional heavy gage wire. They are difficult to
access, but I was able to do it with with a little elbow grease and
without removing the doors. Heres a pic...

Garrett


I got a 403 when I clicked on the link. And I said usually, not always.
Yes you can do it with the doors on, but it's about ten times faster with
them off.

Paul Vina



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