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REV. 7/24/2019 INSTAX-DSP-X
Aftermarket radio system:
The AX-DSP-X can be used with an aftermarket radio to improve the overall listening experience for
car audio enthusiasts. Installers will connect the RCA inputs from the AX-DSP-X to the outputs from
the aftermarket radio; Front, Rear, Sub (sub is optional). When using an aftermarket radio with the
AX-DSP-X, General must be chosen for the vehicle type. (refer to page 4)
Adding a subwoofer to an OEM System:
This feature offers the Installer the ability to add an aftermarket subwoofer to an OEM system,
whether the OEM system is non-amplified, or amplified with an analog or digitally controlled (fixed
signal) amplifier. If the vehicle is equipped with noise canceling mics, they must be disabled for this
type of system. (refer to page 5)
OEM System without an amplifier:
This option allows the Installer to wire the AX-DSP-X directly to the speaker outputs from the OEM
radio for an audio signal (high-level). (refer to page 6)
OEM System with an “analog” amplifier:
This option allows the Installer to tap directly to the output of the OEM radio and feed an audio
signal into the AX-DSP-X. This type of installation requires the removal of the factory amplifier, and
will provide a full range signal to the input side of the AX-DSP-X. (refer to page 7)
OEM System with a “digitally controlled” amplifier:
Digitally controlled systems function differently than analog systems. They have a fixed level audio
signal that is controlled through the vehicle’s CAN bus. In most cases the programming content (audio)
provided is just two channels, which can be either front or rear. The other channels are for content like
Phone/Bluetooth, SMS reader, SYNC, or OnStar. The AX-DSP-X can retain these OEM features, and also
provide a clean audio signal. This type of installation requires the removal of the factory amplifier, and
will provide a full range signal to the input side of the AX-DSP-X. (refer to page 7)
Factory Radio Systems
1. Remove the factory radio*, then unplug all connectors.
2. Install the vehicle specific T-harness (sold separately) and make all necessary
connections, but leave the amp turn-on wire disconnected.
3. Plug the 20-pin AX-DSP-X harness into the AX-DSP-X.
4. Plug the 16-pin AX-DSP-X harness into the AX-DSP-X.
5. Plug all connectors back into the OEM radio.
6.
Download and install the AX-DSP-X app from the Google Play Store or Apple App Store
.
7. Using the app, select the vehicle.
8. Connect the amp turn-on wire from the AX-DSP-X.
9. Test all functions of the installation, then reassemble the dash to complete the
installation.
* Refer to Metra online for dash disassembly. If Metra makes a dash kit for the
vehicle, disassembly will be within the instructions.
Aftermarket Radio Systems
1. Complete all necessary connections to the radio and vehicle, but leave the amp
turn-on wire disconnected.
2. Plug the 20-pin AX-DSP-X harness into the AX-DSP-X.
3. Plug the 16-pin AX-DSP-X harness into the AX-DSP-X.
4.
Download and install the AX-DSP-X app from the Google Play Store or Apple App Store
.
5. Using the app, select the vehicle.
6. Connect the amp turn-on wire from the AX-DSP-X.
7. Test all functions of the installation, then reassemble the dash to complete the
installation.
INSTALLATION OPTIONS I N S TAL L AT IO N