05-09 Interior and Audio Mods Enhancing Your Mustang's Interior and Sound System

AVIC ILL/VSS & Reverse Connections for Z2... and possibly D3 and Z1

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Old Jan 5, 2008 | 07:05 PM
  #1  
legion455's Avatar
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AVIC ILL/VSS & Reverse Connections for Z2... and possibly D3 and Z1

AVIC Z2 (Extra) Connections
for 2007 Mustang GT Automatic. (w/ Shaker 500)
(probably also good for the AVIC D3 and Z1 as well)

To help others that might have the same problems as I did when installing a Pioneer AVIC Z2
in my 2007 Mustang GT Automatic, I thought I'd take a few photos of
the connections that I made, and pass the info on.

There are no illumination connections on the wire harness that connects to the Shaker 500.
The illumination wire that connects to the AVIC Z2 is Orange/White.
We have to find a connection point under the dash to complete the illumination circuit,
whose purpose is to dim the lcd screen and front panel lighting on the AVIC
when the headlights are turned on.

Pull out the light switch from the dash as shown above
(use a small flat blade screwdriver - the switch pops right out)
and locate the yellow/blue wire.


Tap into the Yellow/Blue wire and connect this to the Orange/White "ILL" wire
coming from the AVIC Z2.

Next up is the reverse wiring and connections. Normally, one would connect the
"REVERSE GEAR SIGNAL" coming from the AVIC to the 12volt wire that
illuminates the white reverse lights on the rear of the car. Then, when you put the car in reverse,
the rear camera comes on and is displayed on the lcd screen.

But, .... I would also like to be able to view the rear camera at 'other times' as well,
soooo, .. we'll have to install a toggle switch somewhere on the dash on console.
The switch I installed is from www.allelecetronics.com Cat#RS-145,
SPDT Round Rocker Switch.

I'm going to wire the switch so that when the switch is in the "down" position
the AVIC will display the rear camera when the car is in reverse.
If I flip the switch to the "up" position, regardless of which gear I'm in, the AVIC will also display the
information from the rear camera.

Remove the passenger side sill plate. No screws here either, ... just gently pop up with a flat blade
screwdriver. Locate a yellow/white wire in the wiring as shown below.
This is the wire that turns to the rear white backup lights when the car is
put into reverse.




There are 2 wires that look the same here, so
you'll have to peel back a piece of the insulation to make sure the wire
reads +12volts when the transmission is put into reverse.
Once you have found the correct wire, ... tap into it. You'll connect this
wire in the next step.




Next, install the SPDT (Single Pole - Double Throw) switch
on the console.



After you've installed the switch, turn over the console. There are three connections you
will have to make. The center terminal is the "common" terminal and it gets connected to the
Purple/White wire coming from the AVIC labeled "Reverse Gear Signal"



The bottom lug of the switch needs to get connected to the wire coming from the AVIC labeled
"ACC" Note: this wire is also connected to the ford wire harness and is the +12volts that goes
to the AVIC when the ignition key in in the on position.

The top lug of the switch gets connected to the wire that you connected to the
backup tail light circuit under the right sill plate.

Solder all connections.

On my car there is NO Speed Sense wire that is available under the dash
or in the Shaker 500 wire harness.


Next is the Vehicle Speed Sense (VSS) wire. This pink wire comes from the
AVIC and is labeled "CAR SPEED SIGNAL"
We need to run this wire up to the PCM (Blue/Yellow - pin 3) in the right front of the engine compartment.
per the photos, you should be able to find a place to feed the pink wire thru the firewall
into the engine compartment. A good location is on the passenger side just in front
of the fuse panel. see photos (I used a screwdriver to help push back the rubber harness grommets so
that the wire would feed thru easily)



After you have shoved the pink wire thru the firewall a few inches, you should be able to
open the engine compartment and reach under the battery and grab the wire without removing the battery itself.
Route the wire up to the front of the PCM, and locate the Blue/Yellow wire
coming out of the top connector as shown pin 3, then tap into this wire.


Well, that's it, ... I surely hope this will make installing the Excellent Pioneer AVIC series NAV units much easier! As always, do the above at your own risk, ... remember, .. life's a highway!!!
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Old Jan 5, 2008 | 07:23 PM
  #2  
dmhines's Avatar
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Joined: September 11, 2006
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From: Cumming, GA
Nice! I'll be installing an Avic-D3 one of this days ... I printed this for reference ...
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Old Jan 5, 2008 | 07:46 PM
  #3  
tom281's Avatar
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Joined: October 8, 2005
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From: Medina county, OH
Nice Allen! Love that switch location........

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Old Jan 5, 2008 | 07:58 PM
  #4  
05fordgt's Avatar
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From: Phoenixville, PA
Wonderful step-by-step instuctions Allen. TacoBill would be proud ! BTW, any shots of how you ran the wire for the backup camera from the back of the bumper to the radio?
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Old Jan 5, 2008 | 09:21 PM
  #5  
legion455's Avatar
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I'll try and take a few photos tomorrow. With the Pioneer camera, I didn't install it in the "key-hole" as TacoBIlly did.. It's a wide angle camera, and the view from the key-hole was weird in that position ... anyway, I'll take some photos when teh rain lets up.
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Old Jan 6, 2008 | 10:17 AM
  #6  
newbreedgt05's Avatar
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Thanks so much! That cleared up a lot. I will be putting a Z2 in my car pretty soon also. Any pics of it installed? Where did you mount the rear view camera?
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Old Jan 7, 2008 | 11:14 AM
  #7  
VVVROOM's Avatar
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So what purpose does the VSS wire serve on the head unit? I installed the AVIC-D3 in my car, and haven't had a chance to do the VSS wire yet. However, everything seems to work perfectly (navigation, vehicle dynamics, etc). I'm curious what the benefits are...

Thanks
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Old Jan 8, 2008 | 07:58 PM
  #8  
mrkabc's Avatar
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Great write up! A couple of questions:

(I'm thinking of ditching my factory NAV for the Z2)

Isn't the Crutchfield harness plug and play? Your instructions are talking about illumination and VSS, that isn't included?
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Old Jan 8, 2008 | 08:20 PM
  #9  
newbreedgt05's Avatar
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Originally Posted by mrkabc
Great write up! A couple of questions:

(I'm thinking of ditching my factory NAV for the Z2)

Isn't the Crutchfield harness plug and play? Your instructions are talking about illumination and VSS, that isn't included?

Yes. On most cars, those two wires are available at the harness, but for some reason on the mustang, they aren't.
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Old Jan 10, 2008 | 12:28 PM
  #10  
legion455's Avatar
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MRKABC:

You also have to purchase a Ford Metra Wiring Harness for your car. Then you have to make connections between the Ford harness and the AVIC harness before you plug everything in. (the AVIC just doesn't 'plug into' a Ford Mustang).

If you want to play DVDs "anytime" you'll also need to do the AVIC "bypass" modification.

Then also do the wiring job as I showed above, ... plus mount the rear camera, ... and you're done. Not a "hard job" but not for a novice either.

go over to www.avic411.com, .. and you can get alot of info about teh installation, etc...

hope this helps
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Old Jan 12, 2008 | 02:14 PM
  #11  
legion455's Avatar
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Here are some photos of my installation.



As you can see, I got rid of the Pioneer 'startup' scrfeens and put in my own.



I tried to install the camera in teh 'key slot' as Taco Bill, ... but because of the size of the camera I couldn't push it into the keyhole far enough to get a full view, ... so I decided on this location and installed using double-sided tape.



I didn't have to drill any holes, ... as the camera's wire ran nicely out through the trunk drain hole!



Then just remove the license plate light, ... run the camera thru there, .. then reinstall the light housing.

hope this helps
ALlen
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