Axxess AX-PO904 User manual

CAUTION! All accessories, switches, climate
controls panels, and especially air bag indicator
lights must be connected before cycling the
ignition. Also, do not remove the factory radio
with the key in the on position, or while the
vehicle is running.
AX-PO904
INSTALLATION INSTRUCTIONS
AxxessInterfaces.com © COPYRIGHT 2018 METRA ELECTRONICS CORPORATION REV. 2/27/18 INSTAX-PO904
TOOLS REQUIRED
• Wire cutter • Crimp tool • Solder gun • Tape
• Connectors (example: butt-connectors, bell
caps, etc.)
TABLE OF CONTENTS
Connections to be made .......................................2
Installing the interface ..........................................2
Porsche (with M.O.S.T. 25 amplifier) Data Interface 2004-2009
INTERFACE FEATURES
INTERFACE COMPONENTS
• Provides accessory power
• Retains R.A.P. (retained accessory power)
• Designed for amplified models
• Provides NAV outputs (parking brake, reverse, speed sense)
• Retains balance
• Micro “B” USB updatable
• AX-PO904 interface
• AX-PO904 amplifier interface
• AX-PO904 harness
APPLICATIONS
PORSCHE
911 (997) 2004-2009 Boxster (987) 2004-2009 Cayman (987c) 2004-2009

2
CONNECTIONS TO BE MADE INSTALLING THE INTERFACE
From the aftermarket radio to the AX-PO904 harness:
• Connect the Black wire to the ground wire.
• Connect the Yellow wire to the battery wire.
• Connect the Red wire to the accessory wire.
• If the aftermarket radio has an illumination wire, connect the Orange wire to it.
• Connect the Blue/White wire to the amp turn-on wire.
The following (3) wires are only for multimedia/navigation radios that require these wires.
• Connect the Blue/Pink wire to the VSS/speed sense wire.
• Connect the Green/Purple wire to the reverse wire.
• Connect the Light Green wire to the parking brake wire.
• Tape off and disregard the following (8) wires, they will not be used in this application:
Gray, Gray/Black, Green, Green/Black, Purple, Purple/Black, White, White/Black
• Connect the Red and White RCA jacks to the front amplifier output jacks of the aftermarket radio.
With the key in the off position:
• Connect the AX-PO904 harness to the AX-PO904 interface.
• Connect the AX-PO904 harness to the AX-PO904 amplifier interface.
• Remove the dust cover from fiber optic port in the AX-PO904 amplifier interface.
• Connect the factory fiber optic cable into the AX-PO904 amplifier interface.
• Connect the AX-PO904 harness to the wiring harness in the vehicle.

3
REV. 2/27/2018 INSTAX-PO904

KNOWLEDGE IS POWER
Enhance your installation and fabrication skills by
enrolling in the most recognized and respected
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Log onto www.installerinstitute.com or call
800-354-6782 for more information and take steps
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®
Metra recommends MECP
certified technicians
IMPORTANT
If you are having difficulties with the installation of this product,
please call our Tech Support line at 1-800-253-TECH. Before doing
so, look over the instructions a second time, and make sure the
installation was performed exactly as the instructions are stated.
Please have the vehicle apart and ready to perform troubleshooting
steps before calling.
AxxessInterfaces.com © COPYRIGHT 2018 METRA ELECTRONICS CORPORATION REV. 2/27/18 INSTAX-PO904
INSTALLATION INSTRUCTIONS
AX-PO904