Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2061 (CELLULAR SYSTEMS, ENTERTAINMENT SYSTEMS & NAVIGATION SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESANTENNA COAXIAL/CONNECTOR CABLE IDENTIFICATION TABLE
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Antenna Coaxial/Connector Cable Identification Table
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Antenna Coaxial/Connector Cable Identification Table
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
ONSTAR, GPS, XM, AM/FM-CONNECTOR IDENTIFICATION AT CIM
| SYSTEM | COAX TYPE | PURPLE | BLUE | CURRY (Mustard Yellow) | GREEN |
|---|---|---|---|---|---|
| OnStar (Cellular) | RG 58 | X | - | - | - |
| GPS | RG 174 | - | X | - | - |
| XM | RG 316 | - | - | X | - |
| XM w/High Gain Antenna Module (Cables longer than 4400 mm (14.5 ft)) | - | - | - | - | X |
CONNECTOR IDENTIFICATION AT ONSTAR ANTENNA BASE
| CONNECTOR CONFIGURATION | OnStar (Cellular) PURPLE | GPS BLUE | XM CURRY (Mustard Yellow) | XM GREEN | AM/FM |
|---|---|---|---|---|---|
| 3 Individual Connectors | X | X | X | - | - |
| 2 Individual Connectors | X | X | - | - | - |
| 3 Way Connector w/3 COAX Cables | X | X | X | - | - |
| 3 Way Connector w/2 COAX Cables with a Separate Connector for XM | X | X | X (S) | - | - |
| 3 Blue 2 Way Connectors + Power Feed (Hexband) | X | - | X | - | X |
| 1 Connector with Splitter | X (S) | X (S) | - | - | - |
| High Gain Antenna XM 3 Individual Connectors (ver 1) | X | X | - | X | - |
| High Gain Antenna XM Blue 2 Way with Separate Green Connector (ver 2) | 2 way | 2 way | - | X | - |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.