1. Kupu Whakataki
The Axxess GMOS-05 OnStar Interface is designed to facilitate the replacement of an Original Equipment Manufacturer (OEM) radio with an aftermarket receiver in specific non-amplified GM vehicles. This interface is compatible with vehicles equipped with the "Door-n-Lock" style harness. It ensures the retention of key factory features, including OnStar functionality and safety/warning chimes, while also providing necessary outputs for navigation radio installations.
2. Nga korero haumaru
Please read all instructions carefully before installation. Improper installation may result in damage to the vehicle's electrical system, the interface module, or the aftermarket radio.
- Momotuhia te pūhiko kino o te waka i mua i te tīmatanga o tētahi tāutanga.
- Me whakarite kia mau nga hononga katoa, kia tika hoki te kiriweti kia kore ai te ara iahiko poto.
- Mena kāore koe i te tino mōhio ki tētahi wāhanga o te tukanga tāutanga, whakapā atu ki tētahi kaiwhakauru ororongo waka ngaio.
- Kei roto i tenei hua nga matū e mohiotia ana e te State of California ka pa te mate pukupuku me te koha whanau me etahi atu kino uri. Horoi ringa i muri i te mahi.
3. Ihirangi mokete
Verify that all items are present before proceeding with the installation.
- Axxess GMOS-05 Interface Module
- Main Wiring Harness (with "Door-n-Lock" style connector)
- Secondary Wiring Harness (for power/ground/speaker connections)
4. Tatūnga me te Tāuta
This section provides general instructions for installing the GMOS-05 interface. Specific vehicle disassembly and reassembly procedures are not covered and should be referenced from a vehicle-specific service manual or professional guide.
4.1. Hononga Waea
Match the wires from the GMOS-05 harness to the corresponding wires on your aftermarket radio's harness. Refer to the color codes below.
| Tae Waea | Mahi | Hono Ki |
|---|---|---|
| Kōwhai | Mana Pūmau 12V | Aftermarket Radio Yellow Wire |
| Whero | 12V Mana Hoko | Aftermarket Radio Red Wire |
| Pango | Papa whenua | Aftermarket Radio Black Wire |
| Karaka | Whakamaramatanga | Aftermarket Radio Orange Wire (if applicable) |
| Kahurangi/Ma | Amplifier Tahuri-A | Irirangi i muri i te maakete Amp Turn-On Wire (if applicable) |
| Kakariki | Tukuoro o mua mauī (+) | Aftermarket Radio Left Front Speaker (+) |
| Kakariki/Pango | Mauī Mua Tukuoro (-) | Aftermarket Radio Left Front Speaker (-) |
| Mā | Tukuoro o mua Matau (+) | Aftermarket Radio Right Front Speaker (+) |
| Ma/Ma pango | Tukuoro o mua Matau (-) | Aftermarket Radio Right Front Speaker (-) |
| Kerei | Tukuoro Whakamuri Mauī (+) | Aftermarket Radio Left Rear Speaker (+) |
| Hina/Pango | Tukuoro Whakamuri Mauī (-) | Aftermarket Radio Left Rear Speaker (-) |
| Waiora | Tukuoro Whakamuri Matau (+) | Aftermarket Radio Right Rear Speaker (+) |
| Vaioreti / Pango | Tukuoro Whakamuri Matau (-) | Aftermarket Radio Right Rear Speaker (-) |
| Kākāriki Kōmāmā | Putanga Parai Waka | Aftermarket Radio Parking Brake Input (for navigation) |
| Kahurangi | Vehicle Speed Sense (VSS) Output | Aftermarket Radio VSS Input (for navigation) |
| Paraone | Whakamuri Huaputa | Aftermarket Radio Reverse Input (for navigation/camera) |
Tuhipoka: This wiring diagram is a general guide. Always refer to the specific wiring instructions provided with your aftermarket radio and vehicle for precise connections.
4.2. Nga Taahiranga Whakamutunga
- Whakaritea te Waka: Disconnect the negative battery terminal. Remove the factory radio from the dashboard.
- Hononga Waea: Connect the wires from the GMOS-05 harness to the aftermarket radio harness according to the wiring color code (Section 4.1). Solder and heat-shrink all connections for reliability.
- Connect GMOS-05 Module: Plug the prepared GMOS-05 harness into the GMOS-05 interface module.
- Hononga Waka: Connect the vehicle-specific connectors from the GMOS-05 harness into the factory wiring harnesses in the vehicle's radio opening.
- Ngā Putanga Whakatere: If installing a navigation radio, connect the Light Green (Parking Brake), Blue (VSS), and Brown (Reverse) wires from the GMOS-05 harness to the corresponding inputs on your navigation radio.
- Pūnaha Whakamātautau: Before reassembling the dashboard, reconnect the vehicle's negative battery terminal. Turn on the ignition and test the aftermarket radio, OnStar, and safety chimes.
- Whakatika Tautuhinga: Adjust OnStar volume and chime levels as described in Section 5.1.
- Huihuinga Whakamutunga: Once all functions are verified, securely mount the aftermarket radio and reassemble the dashboard.
5. Operating Features and Adjustments
The GMOS-05 interface retains several factory features and allows for adjustments to optimize your audio experience.
5.1. OnStar and Chime Volume Adjustment
The GMOS-05 allows for independent adjustment of OnStar volume and safety/warning chime levels. This is typically done via potentiometers (small adjustment screws) located on the GMOS-05 module itself.
- OnStar Volume: Locate the potentiometer labeled "OnStar Vol" or similar on the module. Use a small screwdriver to turn clockwise to increase volume, counter-clockwise to decrease.
- Chime Volume: Locate the potentiometer labeled "Chime Vol" or similar. Adjust as needed to ensure safety chimes are audible but not overly loud.
Perform these adjustments with the vehicle running and the aftermarket radio powered on to accurately gauge the sound levels.
5.2. Navigation Radio Outputs
The GMOS-05 provides dedicated outputs for aftermarket navigation radios, which require specific vehicle data for proper operation.
- Parking Brake Output: Signals when the parking brake is engaged, often required by navigation units for certain functions.
- Vehicle Speed Sense (VSS) Output: Provides vehicle speed data for accurate navigation tracking.
- Reverse Output: Activates when the vehicle is in reverse, useful for aftermarket backup cameras or navigation features.
6. Tiaki
The Axxess GMOS-05 interface module is designed for maintenance-free operation once properly installed.
- Me whakarite kia mau tonu ngā hononga waea katoa, kia kore hoki e waikura.
- A ape i te tuku i te kōwae ki te tino mahana me te makuku.
- Do not attempt to open or modify the module, as this will void the warranty.
7. Te Raru
| Raruraru | Take pea | Rongoā |
|---|---|---|
| No audio from aftermarket radio. | Incorrect speaker wiring; no power to radio; interface not initialized. | Verify all speaker wires are correctly connected. Check 12V constant and accessory power. Ensure the interface is properly connected to the vehicle's data bus. |
| OnStar or safety chimes are not working or are too loud/quiet. | Incorrect connection to GMOS-05; volume potentiometers need adjustment. | Confirm the GMOS-05 module is properly connected. Adjust the "OnStar Vol" and "Chime Vol" potentiometers on the module (refer to Section 5.1). |
| Aftermarket radio does not power on. | No 12V constant or accessory power; blown fuse. | Check the vehicle's fuse box for blown fuses. Verify the Yellow (constant) and Red (accessory) wires are correctly connected and receiving power. |
| Navigation features (e.g., parking brake, VSS, reverse) are not functioning. | Outputs from GMOS-05 not connected to navigation radio. | Ensure the Light Green, Blue, and Brown wires from the GMOS-05 are correctly connected to the corresponding inputs on your navigation radio (refer to Section 4.1). |
If troubleshooting steps do not resolve the issue, contact Axxess technical support or a certified installer.
8. Whakatakotoranga
- Tauira: GMOS-05
- Waitohu: Axxess
- Kaihanga: Metra Hikohiko
- Hototahi: Kore-amplified GM Vehicles with "Door-n-Lock" style harness (2000-2005 models)
- Rauemi: Parahi, Polyvinyl Chloride (PVC)
- Ahu (L x W x H): 7 x 1.8 x 5 inihi
- Taumaha: 8 hekere
- UPC: 086429126484
- Āhuatanga: Retains OnStar, Retains Safety/Warning Chimes, Provides Navigation Outputs (Parking Brake, VSS, Reverse)
9. Pūtāhui me te Tautoko
The Axxess GMOS-05 interface is manufactured by Metra Electronics. For warranty claims or technical support, please contact the retailer from whom the product was purchased. The retailer will then coordinate with Metra Electronics for warranty services. It is recommended to retain your proof of purchase for warranty purposes.
For additional technical assistance or detailed product information, please visit the official Axxess or Metra Electronics webpae.