1. Introducció
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. Informació de seguretat
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.
- Disconnect the vehicle's negative battery terminal before beginning any installation.
- Assegureu-vos que totes les connexions estiguin ben fixades i degudament aïllades per evitar curtcircuits.
- Consulteu un instal·lador professional d'àudio per a cotxes si no teniu cap dubte sobre alguna part del procés d'instal·lació.
- Aquest producte conté productes químics coneguts per l'estat de Califòrnia per causar càncer i defectes de naixement o altres danys reproductius. Rentar-se les mans després de la manipulació.
3. Contingut del paquet
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. Configuració i instal·lació
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. Connexions de cablejat
Match the wires from the GMOS-05 harness to the corresponding wires on your aftermarket radio's harness. Refer to the color codes below.
| Color del filferro | Funció | Conectat amb |
|---|---|---|
| groc | 12V Constant Power | Aftermarket Radio Yellow Wire |
| Vermell | Alimentació d'accessoris de 12 V | Aftermarket Radio Red Wire |
| Negre | Terra | Aftermarket Radio Black Wire |
| Taronja | Il·luminació | Aftermarket Radio Orange Wire (if applicable) |
| Blau/Blanc | AmpEncesa del lifier | Ràdio postvenda Amp Turn-On Wire (if applicable) |
| Verd | Altaveu frontal esquerre (+) | Aftermarket Radio Left Front Speaker (+) |
| Verd/negre | Altaveu frontal esquerre (-) | Aftermarket Radio Left Front Speaker (-) |
| Blanc | Altaveu frontal dret (+) | Aftermarket Radio Right Front Speaker (+) |
| Blanc/Negre | Altaveu davanter dret (-) | Aftermarket Radio Right Front Speaker (-) |
| Gris | Altaveu posterior esquerre (+) | Aftermarket Radio Left Rear Speaker (+) |
| Gris/Negre | Altaveu posterior esquerre (-) | Aftermarket Radio Left Rear Speaker (-) |
| Violeta | Altaveu posterior dret (+) | Aftermarket Radio Right Rear Speaker (+) |
| Violeta / Negre | Altaveu posterior dret (-) | Aftermarket Radio Right Rear Speaker (-) |
| Verd clar | Sortida del fre d'estacionament | Aftermarket Radio Parking Brake Input (for navigation) |
| Blau | Vehicle Speed Sense (VSS) Output | Aftermarket Radio VSS Input (for navigation) |
| marró | Sortida inversa | Aftermarket Radio Reverse Input (for navigation/camera) |
Nota: 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. Passos d'instal·lació
- Preparar el vehicle: Disconnect the negative battery terminal. Remove the factory radio from the dashboard.
- Connexions de cable: 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.
- Connexió del vehicle: Connect the vehicle-specific connectors from the GMOS-05 harness into the factory wiring harnesses in the vehicle's radio opening.
- Sortides de navegació: 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.
- Sistema de prova: Before reassembling the dashboard, reconnect the vehicle's negative battery terminal. Turn on the ignition and test the aftermarket radio, OnStar, and safety chimes.
- Ajustar la configuració: Adjust OnStar volume and chime levels as described in Section 5.1.
- Assemblea final: 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.
- Volum del timbre: 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. Manteniment
The Axxess GMOS-05 interface module is designed for maintenance-free operation once properly installed.
- Assegureu-vos que totes les connexions del cablejat estiguin ben fixades i lliures de corrosió.
- Eviteu exposar el mòdul a temperatures o humitat extremes.
- No intenteu obrir ni modificar el mòdul, ja que això anul·larà la garantia.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| 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. Especificacions
- Model: GMOS-05
- Marca: Axxess
- Fabricant: Metra Electronics
- Compatibilitat: noamplified GM Vehicles with "Door-n-Lock" style harness (2000-2005 models)
- Material: Coure, clorur de polivinil (PVC)
- Dimensions (L x A x A): 7 x 1.8 x 5 polzades
- Pes: 8 unces
- UPC: 086429126484
- Característiques: Retains OnStar, Retains Safety/Warning Chimes, Provides Navigation Outputs (Parking Brake, VSS, Reverse)
9. Garantia i Suport
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 weblloc.
