Need some help, I have a 1999 mustang gt with factory passive anti theft. I want to upgrade to alarm. I want only one transmitter for the doors and alarm.
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Michael Desautels,
Mustang Plus Kansas City
Here is the wiring diagram for the Mustang. Wire up a new alarm remote control to the wires listed in your new alarm manual to these wires:
| ITEM | WIRE COLOR |POL| WIRE LOCATION |
| 12V|yellow & lt. grn/pur|+ |ignition harness |
| STARTER|WHITE/ pink |+ |ignition harness |
| IGNITION|RED / lt. green |+ |ignition harness |
| SECOND IGNITION|gray / YELLOW |+ |ignition harness |
| ACCESSORY|BLACK/ lt. green |+ |ignition harness |
| SECOND ACCESSORY|RED / black |+ |ignition harness |
| POWER LOCK|lt. green |+ |low in drivers kick or *1 |
| POWER UNLOCK|purple |+ |low in drivers kick or *1 |
| LOCK MOTOR|RED / white | |low in drivers kick or *1 |
| UNLOCK MOTOR|RED / orange | |low in drivers kick or *1 |
| DISARM DEFEAT|pink/orange | |GEM module *1 |
| PARKING LIGHTS +|brown | |light switch or drivers kick|
| PARKING LIGHTS -|WHITE/ black | |*1 |
| HEADLIGHTS|RED / yellow |+ |light switch |
| DOOR TRIGGER|*2 |- |*2 |
| DOME SUPERVISION|BLACK/ white |+ |drivers kick panel or *1 |
| TRUNK/HATCH PIN|BROWN / white |- |drivers kick panel or *1 |
|TRNK/HTCH RELEASE|purple / YELLOW |+ |drivers kick panel |
| FCTRY ALARM ARM| | | |
|FCTRY ALRM DISARM|dk. GREEN/ purple |- |drivers kick panel or *1 |
| DISARM NO UNLOCK| | | |
| TACHOMETER|*3 | |*3 |
| SPEED SENSE|WHITE/ orange | |PCM pin 68 *4 |
| BRAKE WIRE|RED / lt. green |+ |brake switch |
| HORN TRIGGER|yellow/lt. green |- |steering column or *1 |
| WIPERS|white & dk. blu/orn |+ |wiper motor |
| LF WINDOW UP/DN|wht/blk - wht/blk |A |drivers window motor |
| RF WINDOW UP/DN|tan/blu - wht/yel |A |drivers kick panel |
| LR WINDOW UP/DN|yel/blu - gry/orn |A |drivers kick panel |
| RR WINDOW UP/DN|yel/blk - RED / blk |A |drivers kick panel |
| RADIO 12V|lt. GREEN/ violet | |at the radio |
| RADIO GROUND|black | |at the radio |
| RADIO SWITCH|BLACK/ pink | |at the radio |
| RADIO ILLUMINATE|lt. blue/red |+ |at the radio |
| POWER ANTENNA|ORANGE / lt. blue |+ |at the radio |
| LF SPEAKER|orn/grn - blu/wht | |at speaker or amplifier *5 |
| RF SPEAKER|wht/grn - grn/orn | |at speaker or amplifier *5 |
| LR SPEAKER|gry/blu - tan/yel | |at speaker or amplifier *5 |
| RR SPEAKER|orn/red - brn/pnk | |at speaker or amplifier *5 |
Notes:
NOTE: This vehicle has the PATS anti-theft system. *1 Also found at the GEM module located above the drivers kick panel to the drivers side of the steering column. *2 There are two door trigger wires. Use yellow/black for the drivers door and gray/red for the passengers door. Both wires are found above the drivers kick panel in a 20 pin connector. Use both wires and diode isoate each. See direct fax document #1076 for wiring information. *3 For the 3.8L motor, use the dk. blue/lt. green, RED / lt. blue, or the pink/white. All of these wires are found at the coil pack. The 4.6L motor uses a separate coil for each cylinder. Go to any coil and use the wire that is NOT red or WHITE/ lt. blue. *4 The PCM is located behind the passenger kick panel. *5 The amplifier is located just below the radio.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Thank you, I greatly appreciate the info.
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Michael Desautels,
Mustang Plus Kansas City