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  #1 (permalink)  
Old 20 Jun 2007, 08:57 pm
Mark
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Default 94 civic radio problem

hello all,
i was tinkering with my panasonic aftermarket head unit while
attempting to install a subwoofer amplifier in my car, and i think i
may have shorted something out - the head unit won't turn on at all.
i double checked and re-wired everything from the head unit to the
harness and it still wouldn't work, so i busted out my stock radio and
plugged it in, and to my dismay it worked just fine. today i
exchanged my panasonic head unit for a new one, brought it home and
wired everything up, and it still wouldn't turn on at all. i tried
the same head unit in my brother's accord, plugged it into the
harness, and it worked perfectly. i tried to plug my brother's
working alpine head unit into the harness in my car, and it wouldn't
turn on at all. again, the stock radio works every time i try to plug
it in. i have had the panasonic head unit for almost a month, and it
was working perfectly until yesterday.

other possible items of note: ever since the head unit stopped
working, my dash clock has been noticeably dimmer. also, (this is
probably unrelated) about a week ago my tachometer started reading
slightly lower than the actual rpm's (judging from the sound of the
engine).

i am quite new at all of this stuff, so any help would be much
appreciated.
thanks!

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  #2 (permalink)  
Old 21 Jun 2007, 08:26 am
motsco_
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Default Re: 94 civic radio problem

Mark wrote:
> hello all,
> i was tinkering with my panasonic aftermarket head unit while
> attempting to install a subwoofer amplifier in my car, and i think i
> may have shorted something out - the head unit won't turn on at all.
> i double checked and re-wired everything from the head unit to the
> harness and it still wouldn't work, so i busted out my stock radio and
> plugged it in, and to my dismay it worked just fine. today i
> exchanged my panasonic head unit for a new one, brought it home and
> wired everything up, and it still wouldn't turn on at all. i tried
> the same head unit in my brother's accord, plugged it into the
> harness, and it worked perfectly. i tried to plug my brother's
> working alpine head unit into the harness in my car, and it wouldn't
> turn on at all. again, the stock radio works every time i try to plug
> it in. i have had the panasonic head unit for almost a month, and it
> was working perfectly until yesterday.
>
> other possible items of note: ever since the head unit stopped
> working, my dash clock has been noticeably dimmer. also, (this is
> probably unrelated) about a week ago my tachometer started reading
> slightly lower than the actual rpm's (judging from the sound of the
> engine).
>
> i am quite new at all of this stuff, so any help would be much
> appreciated.
> thanks!
>

====================================

There are TWO fuses that pertain to your stereo. You may have only blown
one of them.

'Curly'
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  #3 (permalink)  
Old 21 Jun 2007, 04:05 pm
Mark
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Default Re: 94 civic radio problem

On Jun 21, 9:26 am, motsco_ <mots...@interbaun.com> wrote:
> Mark wrote:
> > hello all,
> > i was tinkering with my panasonic aftermarket head unit while
> > attempting to install a subwoofer amplifier in my car, and i think i
> > may have shorted something out - the head unit won't turn on at all.
> > i double checked and re-wired everything from the head unit to the
> > harness and it still wouldn't work, so i busted out my stock radio and
> > plugged it in, and to my dismay it worked just fine. today i
> > exchanged my panasonic head unit for a new one, brought it home and
> > wired everything up, and it still wouldn't turn on at all. i tried
> > the same head unit in my brother's accord, plugged it into the
> > harness, and it worked perfectly. i tried to plug my brother's
> > working alpine head unit into the harness in my car, and it wouldn't
> > turn on at all. again, the stock radio works every time i try to plug
> > it in. i have had the panasonic head unit for almost a month, and it
> > was working perfectly until yesterday.

>
> > other possible items of note: ever since the head unit stopped
> > working, my dash clock has been noticeably dimmer. also, (this is
> > probably unrelated) about a week ago my tachometer started reading
> > slightly lower than the actual rpm's (judging from the sound of the
> > engine).

>
> > i am quite new at all of this stuff, so any help would be much
> > appreciated.
> > thanks!

>
> ====================================
>
> There are TWO fuses that pertain to your stereo. You may have only blown
> one of them.
>
> 'Curly'


if i blew one, could my stock radio still work (it does...)?

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  #4 (permalink)  
Old 21 Jun 2007, 11:19 pm
Mark
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Default Re: 94 civic radio problem

i don't know if anyone cares, but i resolved the problem tonight so i
figured i'd share the solution.

the problem was that the constant battery connection (yellow cable)
was dead - i guess it got disconnected somehow. the stock radio can
run without this, so that's why it still worked. i ran a new wire
from the battery to the head unit, and it worked.

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  #5 (permalink)  
Old 22 Jun 2007, 04:48 am
Hachiroku ハチロク
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Default Re: 94 civic radio problem

On Fri, 22 Jun 2007 04:19:35 +0000, Mark wrote:

> i don't know if anyone cares, but i resolved the problem tonight so i
> figured i'd share the solution.
>
> the problem was that the constant battery connection (yellow cable) was
> dead - i guess it got disconnected somehow. the stock radio can run
> without this, so that's why it still worked. i ran a new wire from the
> battery to the head unit, and it worked.



Good work!

The stock unit will work without the yellow wire, which is the always-on
connection that maintains the radio's memory. If you had left the radio
in, you would have found that once you turned the ignition OFF, all you're
programmed stations would have been lost.

I don't know why, but aftermarket CD players need both +12v sources to be
live, or they won't turn on.


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