I got a 97 eb with the mach system & Im Upgrading the rear sub to the MTX Thunder stealth box . Im Also adding an Line converter for the rca's for the amp . Dosent any body know what the wires going to the stock amp are ? It has 2 plugs One with 2 wires thats power & ground the theres one with 3 wires which I dont know what they are . I would imagine 2 are speaker wires and the last one should be a remote turn on ? None of them get power when I turn on the radio . I tried searching all over the net and I cant find the wiring for the sub or factory amps . Should I just get the signal for the rca's from the radio where I would get a full range signal or in the rear where I should be getting a sub signal ? Please help all I need is 3 wires remote & spearker +/- Im almost there

 

Comon guys I know some of you know the answer to this . Share the info or expieriences

 

hope this can help you

97 Expedition Stereo Information
Constant 12V+ White/Purple
Switched 12V+ Black/Pink
Ground Black/Green
Illumination Blue/Black
Dimmer n/a
Amplifier Remote Blue
Antenna Right Front
Front Speakers 6" x 8" Doors
Left Front (+) White/Red
Left Front (-) Brown
Right Front (+) Green
Right Front (-) White/Orange
Rear Speakers 6" x 8" Rear Doors
Left Rear (+) Light Blue/Black
Left Rear (-) Yellow
Right Rear (+) Purple/White
Right Rear (-) Light Blue

 

Thanx but thats not the info Im looking but its good to have are theses the wires from the radio to the amp or the amp to the speakers?

 

bump cause I need the answer

 

When I upgraded my sub, the 2 wire plug went to my sub, and the 3 wire plug went to the front somewhere, (probably the +, -, and remote connected to the other amp by the radio).

 

Did you install an aftermarket amp or you used the stock?

 

I used the stock. I planned to upgrade later. If you are installing an aftermarket amp, you will need to run new wires anyway. The factory amp is using 16ga wire, and that will not work for a new amp.

 

I have a '97 Explorer with JBL sound. I bet the sub-amp wiring is similar. If the wire colors are the same, it's a pretty good bet. This is what the two-wire and three-wire connectors to the sub-amp are for my setup:

Two wire-

Light Green with Pink stripe: +12v from battery
Black with Light Green Stripe: Ground

Three wire-

Brown with Orange stripe : + Audio signal from main amp
Red with Black stripe: - Audio signal from main amp
Dark Green with Pink stripe: mute
_________

The speaker wires from the sub-amp to its speaker should be as follows:

Black with Light Green stripe: + speaker
Black with White stripe: - speaker

____

I don't know if mute requires a voltage or the absence of voltage to mute. It probably requires a voltage to Mute. And I don't know if that would be +12 or +5 volts. Someone with more detailed knowledge will have to tell you. Or, turn on your existing setup and measure voltage to ground on the mute pin with the system playing some tunes, with mute turned on and off at the head unit, and see what you get. (Unless you don't need Mute with your new setup).

 

Thanx Duke you got the right info so lets clear this up
For the 97 expy with mach system the amp has 3 plugs on the sub woofer amp
_________

Plug #1 = Three wire plug that is on the left side of the amp
Brown with Orange stripe : + Audio signal from main amp
Red with Black stripe: - Audio signal from main amp
Dark Green with Pink stripe: mute ? / remote ?
_________

Plug #2 = 2 wire plug that is on the right side that goes to the speaker

Black : + speaker
Black with gray dash : - speaker

_________

Plug #3 = 2 wire pigtail plug on the right side is the power & ground harness

_________

Constant 12V+ White/Purple
Switched 12V+ (ign ) Black/Pink
Ground Black/Green
Illumination Blue/Black

Front Speakers 6" x 8" Doors
Left Front (+) White/Red
Left Front (-) Brown
Right Front (+) Green
Right Front (-) White/Orange

Rear Speakers 6" x 8" Rear Doors
Left Rear (+) Light Blue/Black
Left Rear (-) Yellow
Right Rear (+) Purple/White
Right Rear (-) Light Blue


So I finally got the thunder form enclosure installed and working I used a pac oem 2 line converter that I had laying around to convert the sub signal to rca . The only wire I wasnt able to get was the remote wire . I tested every wire on the back of the radio but I didnt find any thing that switched to 12v power when the radio turned on . So I just hooked it up to the black /pink ignition wire . The only problem I have is that when I turn the radio on / off
I get a loud noise to the amp for a split second . Also I thought that the thunderform box was going to thump but to be it just sounds a little better then stock ( Im used to that vibrate your nose hair bass ) but theres always room for improvement . Thanx guys for all your help .
Sorry the post was kinda long

 

In the standard system, the Dark Green with Pink (Mute, also labeled Enable on other diagrams) comes from the chassis amp (not the head unit) to the sub-woofer. This wire ikely is the signal that is hot only when the radio is turned on. You might try getting your "on signal" power from there, if you are still using the factory main amp. I would check it for voltage with the radio off and on before using it.

And be aware this is a signal voltage, not a power voltage. You cannot feed the main power to the new woofer amp through this.

 

I got a 4 gauge power wire for the amp and 4 gauge 10" for ground
As far as the mute ? i dont have a mute button on the radio so maybe its not that . I was thinking it had to be signal on but with a regular power probe it showed nuetral and went off for 1 sec when I turned the radio one with a volt meter it went to 0.5 v I think dont remeber ill check it again when I get home . The new amp needs a 12v source for remote thats why I used the ign wire . Maybe theres away to still use this for remote Im gonna research it .

 

If you can find out what voltage this signal line outputs, (0.5 is awfully low), you should be able to go to Radio Shack and get a low voltage relay. The relay needs to be able to handle only +12 volts and minimal amps on the load side - probably no more than 300-500 milliamps. But the tripping voltage must match that being output on the signal line, or the relay won't be pulled down. If you can match things up, you should be able to find a way to make thinks work.