For specific model variations (e.g., the 4" Cube lights), refer to the included manual – but the color code remains consistent across the Roadshock line as of 2020-2025 production.
| Wire Color | Function | | :--- | :--- | | | Ground (-) | | White | Main Beam Positive (+) | 3. Standard Wiring Diagram (Using Included Relay Harness) Roadshock light bars are typically sold with a pre-assembled relay wiring harness. The diagram below illustrates the correct flow.
| Wire Color | Function | Connection Destination | | :--- | :--- | :--- | | | Ground (Chassis Negative) | Vehicle chassis or battery negative (-) terminal | | White | Main Beam Positive (+12V) | Relay output terminal #87 (high current) | | Yellow | Backlight / DRL Positive (+12V) | Relay output terminal #87a OR switched accessory fuse | Note: Do not connect both White and Yellow to the same +12V source simultaneously unless the harness is rated for combined amperage. The backlight (Yellow) draws significantly less current than the main beam. 2.2 2-Wire System (Single-Function) Found on older Roadshock pods or basic 4" lights.
[ROADSHOCK LED LIGHT BAR] | | | Black White Yellow | | | | | +------------> To Switch Panel or Backlight Relay | | (Optional) | +------------> To Relay Terminal #87 (Normally Open) | +------------> To Vehicle Ground (Chassis) & Relay Terminal #85 [RELAY (Bosch style 30/40A)] +---------------------------+ | 86 85 | | (Switch +) (Ground) | | | | 30 87 | | (Battery +) (To Light) | +---------------------------+ [Vehicle Battery +] ----> Fuse (30A) ----> Terminal #30 [Vehicle Battery -] ----> Chassis Ground ----> Terminal #85