
AX-DSP T-Harness
The Axxess T-harness is a basic and simple plug-n-play harness for easy installation of the AX-DSP (sold separately) for vehicle
specific applications. Most T-harnesses created by Axxess will either have a 4-pin or 8-pin harness, with the speaker wires pinned.
If you are installing a 4-channel amplifier with the AX-DSP, leave these connectors disconnected. The only reason for connecting
these harnesses together would be if the AX-DSP is being used for adding a subwoofer amplifier only. Some T-harnesses require
additional wiring and/or installation steps. Refer to the following page for a pinout legend for the 20-pin harness, and also
additional wiring and notes.
AX-DSPHNS
INSTALLATION INSTRUCTIONS
TABLE OF CONTENTS
20-Pin Harness Pinout...........................................2
Additional Wiring & Notes ....................................3
Attention! Let the vehicle sit with the key
out of the ignition for a few minutes before
removing the factory radio. When testing the
aftermarket equipment, ensure that all factory
equipment is connected before cycling the
key to ignition.
AxxessInterfaces.com © COPYRIGHT 2018 METRA ELECTRONICS CORPORATION REV. 11/2/18 INSTAX-DPSHNS

20-PIN HARNESS PINOUT
Pin-1 Red Accessory Power
Pin-2 Brown Not Applicable
Pin-3 Pink CAN-HI (CAN +)
Pin-4 Black/Yellow Future Use
Pin-5 White/Black Front Left Speaker (-)
Pin-6 Gray/Black
Pin-7 Green/Black Rear Left Speaker (-)
Pin-8 Purple/Black
Pin-9 RCA Input 5 (-)
Pin-10 RCA Input 6 (-)
Front Right Speaker (-)
Rear Right Speaker (-)
Pin-11 Yellow Battery Power
Pin-12 Orange Control Wire for the AX-BASSKNOB
Pin-13 Blue/Pink CAN-LO (CAN -)
Pin-14 Black Ground
Pin-15 White Front Left Speaker (+)
Pin-16 Grey Front Right Speaker (+)
Pin-17 Green Rear Left Speaker (+)
Pin-18 Purple Rear Right Speaker (+)
Pin-19 RCA Input 5 (+)
Pin-20 RCA Input 6 (+)
Wire View of Harness
2