Ferrari Mailing List: Re: More Stereo Installation & Wiring Expertise Needed

[LarryT (l02turner]

(radio re: 3rd para down
Hey Doug -
You wrote about the problems with your security systems - IMHO security 
systems caused more problems than they prevented.   All of the systems in 
the cars I've known have had problems.  Our 78 Malibu was a wonderful car 
with an amazing engine - a 305ci ChevyV8 that always gave perfect service. 
Wish I'd saved that engine and put it in my MGB ;-)  Another story for 
another time.

Anyway - the security system would decide to cut the ignition at anytime in 
no particular order.  We'd be driving along happily and all of a sudden 
everything was dead.  It'd restart instantly or make us wait 1/2 hour - 
whatever it was in the mood to do. After it did this 3 times it was all 
removed.  No more problem.

re the radio -- ditto the yellow wire needs to go to the battery + 
terminal --- I've tried to attach it differently in the past and they 
usually had problems until the yellow went directly to the + battery.  After 
that they worked better.  No idea why but they did.

Good luck!
LarryT
Porsche Posters!! And
Oil Analysis at youroil.net.
----- Original Message ----- 
From: "Doug and Terri Anderson" <dnt [at] dock.net>
To: "Larry Turner" <l02turner [at] comcast.net>
Cc: "The FerrariList" <ferrari [at] ferrarilist.com>
Sent: Monday, April 27, 2009 3:01 AM
Subject: Re: [Ferrari] More Stereo Installation & Wiring Expertise Needed


> Good points Todd.  I am taking notes.
>
> Hey Rob - I'm with ya on the electrical stuff.  If you can't see it, it 
> must
> not exist.  Spent many horrible night staring at the ceiling when trying 
> to
> replace the butchered wire job the previous owner had done putting in a
> Bulldog alarm system in our 69 Porsche 912 in the early 70s.  That high 
> tech
> alarm was one of those things that has a bouncy weighted spring to make
> contact with if the car is monkeyed with or a door is opened and honked 
> the
> horn.  Anytime it was off half of the interior lights wouldn't work. 
> Funny
> thing about electricity - its happy moving in both directions unless you 
> put
> a diode in the stream - - - I think.  heh heh
>
> Good luck on this venture - I am following your story as our 82 911SC door
> speakers have never worked (only the rear 4 ohm ? rears wired together) 
> and
> now, after 10 years of that nonsense, the whole thing has gone kaput.  So 
> I
> too have a project in waiting.
> Onward
> DOUG
>
> ----- Original Message ----- 
> From: "Todd Walke" <racertod [at] racertodd.com>
> To: "DOUG" <dnt [at] dock.net>
> Cc: "The FerrariList" <ferrari [at] ferrarilist.com>
> Sent: Sunday, April 26, 2009 11:27 PM
> Subject: Re: [Ferrari] More Stereo Installation & Wiring Expertise Needed
>
>
> > Robert wrote:
> >
> > > I am no electrical expert and am having a real hard time with this
> > > but, when I turn the car off or hook up the power to the factory
> > > always on wire the unit works great all the way up to max volume with
> > > no "Protect" warning its only when the cars ignition circuit is
> > > activated it shows a short.
> >
> >         Well, since the manual says that the Protect warning is only for
> > speaker shorts I'd start by disconnecting all the speaker wires, then
> > adding them one at a time.  Even though you used new wires, it's possible
> > that a wire got pinched in the door jamb, or the insulation got damaged
> > when threading a wire though the body or a terminal is touching the body
> > and grounding.
> >         If you get Protect even with all the speakers disconnected, then
> > I'd investigate your red and yellow power leads.  Maybe some sort of 
> > weird
> > ignition interference on one of those wires is freaking out the radio.
> >
> >         Do this experiment: temporarily run both red and yellow to the
> > battery directly and see if you get the Protect with the car running.  If
> > you don't, hook up your speaker wires.  If you still don't get the 
> > warning
> > with the car running, then the problem lies in where you are hooking up
> > the
> > red and yellow power wires.
> >
> >         Were it my car, my preference would be to run the yellow wire
> > directly to the battery with a fuse inline.  Second choice would be to 
> > run
> > that wire to the fusebox, tapping off the main wire the brings power from
> > the battery, again with an inline fuse.  That way you're bypassing the
> > whole fusebox.
> >         For the red wire, I'd prefer to tap directly into the ignition
> > switch, again bypassing any fusebox circuits.  I'm not familiar with the
> > GT4 wiring, but there is likely a wire from the ignition switch to the
> > fusebox that is only hot when the ignition is on, my second choice would
> > be
> > to tap it there.
> >
> > > If there was some kind of short wouldn't the unit give the
> > > same warning straight from the battery??????
> >
> >         You'd think so, but sometimes even older, simple cars can do 
> > wacky
> > stuff.  In an older car, you never know what butcher has worked on the
> > electricals before you.
> >
> >
> > Todd
> > Seattle,WA
> > '86 GTI, Red of course. (exciting racey car) 268,000 miles
> > '01 Golf TDI, silver.   (new work car)       202,000 miles
> > '87 Golf, Polar Silver. (retired work car)   654,000 miles <- Gone to a
> > new
> > home :(
> > http://www.pureluckdesign.com <-Ferrari & VW stuff
> >
> >
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