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Wiring Problems

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Wiring Problems - 1/15/2006 4:22:19 PM

SDelgado87

Posts: 65
Joined: 9/21/2004
Status: offline

Hey...

I have a 91 Ford Mustang with premium sound, 6 speakers. Ever since trying to install my head unit for the first time, the stock amp has always caused a problem. I drove everywhere within a 10 mile radius trying to find a amplifier bypass harness, but I had no luck. So, I ripped the amp out, and kept the wiring. Now I need to find the wiring diagram from the Stock amp to the Speakers, so I can connect them to my head unit and enjoy them working again. This is the diagram of the wiring I pulled from the amp:

1) Picture1 has the wiring side
2) Picture2 has the connecting side

Now I need to know the diagram for which of those colors I should be connecting to my speakers wires from the Head Unit. The Wire harness for the black plug in does not work at all, so yea...

I can't find the wiring from the stock amp to the speakers ANYWHERE, so I was hoping someone here would know.

If the pictures don't work, this is how the colors go, looking from the wiring side:

A B C D
E F G H

A= Green /w Orange Stripe
B= Orange
C= White /w Black Stripe
D= Purple
E= Grey
F= Yellow /w Black Stripe
G= Brown
H= Light Blue /w Black Stripe

Attachment (2)

_____________________________

91 Mustang 5.0 LX

BBK Offroad H Pipe
40 Series 2 Chamber Flowmasters

Post #: 1

RE: Wiring Problems - 1/15/2006 4:27:14 PM

pj1010

Posts: 971
Joined: 8/30/2005
Status: offline

When you say 6 speakers, what type are they?

I'm guessing 4 full range and two tweeters?

(in reply to SDelgado87)

Post #: 2

RE: Wiring Problems - 1/15/2006 4:29:08 PM

SDelgado87

Posts: 65
Joined: 9/21/2004
Status: offline

correct, sorry forgot to mention that

_____________________________

91 Mustang 5.0 LX

BBK Offroad H Pipe
40 Series 2 Chamber Flowmasters

(in reply to pj1010)

Post #: 3

RE: Wiring Problems - 1/15/2006 4:42:13 PM

pj1010

Posts: 971
Joined: 8/30/2005
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Which speakers get powered by the amp?

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Post #: 4

RE: Wiring Problems - 1/15/2006 4:45:07 PM

SDelgado87

Posts: 65
Joined: 9/21/2004
Status: offline

From the head unit, only the right side of the car speakers were working. I've completely removed all the wiring, so I can redo it. I'm trying to figure out some trial and error to find out which wiring is to which speaker, does anyone know a quick way to do that?

_____________________________

91 Mustang 5.0 LX

BBK Offroad H Pipe
40 Series 2 Chamber Flowmasters

(in reply to pj1010)

Post #: 5

RE: Wiring Problems - 1/15/2006 5:02:19 PM

pj1010

Posts: 971
Joined: 8/30/2005
Status: offline

quote:

ORIGINAL: SDelgado87

From the head unit, only the right side of the car speakers were working. I've completely removed all the wiring, so I can redo it. I'm trying to figure out some trial and error to find out which wiring is to which speaker, does anyone know a quick way to do that?

So do all the speakers get powered by that amp???

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Post #: 6

RE: Wiring Problems - 1/15/2006 6:53:22 PM

SDelgado87

Posts: 65
Joined: 9/21/2004
Status: offline

No, there is no amp powering the speakers, the Head Unit has the internal amp.

_____________________________

91 Mustang 5.0 LX

BBK Offroad H Pipe
40 Series 2 Chamber Flowmasters

(in reply to pj1010)

Post #: 7

RE: Wiring Problems - 1/15/2006 7:18:11 PM

pj1010

Posts: 971
Joined: 8/30/2005
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Well the main issue I see here is the crossover. If the crossover is inside the headunit, which I think it is, you are going to have to come up with something to fix that.

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Post #: 8

RE: Wiring Problems - 1/16/2006 10:59:57 AM

Sinister Audio

Posts: 487
Joined: 11/4/2005
Status: offline

i have a ford premium sound kit here thats made for bypassing the fatory amp. also if you want you could run new wires to the doors and in the back and put new speakers there it would sound better. dont worry about the dash speakers they wont last very long anyways.

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Post #: 9

RE: Wiring Problems - 1/16/2006 11:03:21 AM

pj1010

Posts: 971
Joined: 8/30/2005
Status: offline

quote:

ORIGINAL: Sinister Audio

i have a ford premium sound kit here thats made for bypassing the fatory amp. also if you want you could run new wires to the doors and in the back and put new speakers there it would sound better. dont worry about the dash speakers they wont last very long anyways.

Are they all full range speakers?

(in reply to Sinister Audio)

Post #: 10

RE: Wiring Problems - 1/16/2006 11:04:30 AM

Sinister Audio

Posts: 487
Joined: 11/4/2005
Status: offline

they all are but the dash are 3.5"s and they absolutely suck and cant handel any power anyways.

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Post #: 11

RE: Wiring Problems - 1/16/2006 11:05:07 AM

pj1010

Posts: 971
Joined: 8/30/2005
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Right on...screw em then.

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Post #: 12

RE: Wiring Problems - 1/16/2006 4:46:14 PM

90VERTGT

Posts: 7
Joined: 12/12/2005
Status: offline

SDelgado,
I just dealt with this dilemma in my 90 vert. I went through the same BS
that your going through until I found a hint online somewhere. There are a factory
set of rectangular plugs with individual grounds hidden behind the radio/ac area. It
took me a while to finally get out the flashlight and crawl around on the floorboard but
I did and HOLY CHIT!!!!! They are hidden in there. They look exactly like the ones you
unhooked from the ford factory radio. Rectangular, not the square ones coming in and
out of the amp! You pop the little plastic clip holding them to the passenger side of the
a/c frame thingy and pull them down. Simply unhook the harness(which runs to the
square amp plugs) and plug your aftermarket harness right in there. No special amp
bypass this or that. You just plug it in like it's supposed to be. If you look the black
speaker plg has all 8 wires including individual grounds . I just tried mine this past
weekend and finally got tunes! Don't hold me to it if your car year/model is different:)
But worth a look!
Good Luck 90VERTGT

(in reply to pj1010)

Post #: 13