COBRA OBDII to Barrel Power Cord 9.8ft — Plug-and-Play Hardwire for Radar Detectors

Plug your Cobra radar detector into your vehicle’s OBDII port for a tidy, reliable power connection without using the cigarette lighter or tapping factory wiring.

This Cobra OBDII-to-barrel connector power cord lets compatible radar detectors draw power directly from any modern car’s diagnostic port. The plug-and-play cable simplifies installation, keeps dash and center-console ports free, and offers nearly ten feet of routing length for a discreet, professional-looking setup. Because the cable uses continuous OBDII power, most detectors need a power-mode change to avoid battery drain when the engine is off.

How do I install the OBDII power cord quickly?

Installation is designed to be straightforward: plug the OBDII end into the vehicle port and connect the barrel plug to the radar detector. No fusebox access or wire splicing is required, making it a low-effort upgrade for most users.

• Locate an accessible OBDII port under the dash or near the console.
• Route the 9.8ft cord neatly along trim panels to hide excess cable.
• Insert the barrel connector into your detector’s power jack and tuck away loose cable.

Will this cord work with my car and radar detector?

The cable is compatible with any vehicle that has a standard OBDII port and with Cobra radar detectors or other units that accept a barrel-style power plug. Because OBDII power behavior varies by make, you may need to set your detector to a mode that prevents continuous draw when the engine is off.

• Works with all modern OBDII-equipped cars, trucks, and SUVs.
• Fits detectors that use the matching barrel power jack.
• Check your detector’s power settings to avoid battery drain if required.

What benefits does hardwiring through OBDII provide?

Hardwiring to the OBDII port provides a clean, reliable source of vehicle power without occupying interior charging ports. It removes the need for cigarette-lighter adapters or tapping into the fusebox, preserving your cabin ports and keeping the installation reversible.

• Frees up cigarette lighter and USB ports for other devices.
• Provides a neat, factory-like installation with hidden wiring.
• Avoids permanent splices or modifications to vehicle wiring.

How long is the cable and where can I route it?

The cord measures 9.8 feet, giving plenty of length to route under dash panels, along A-pillars, or behind trim to achieve an unobtrusive setup. This length supports flexible mounting positions so you can place the detector for optimal visibility and sensing performance.

• 9.8ft length for routing from OBDII port to windshield or rearview mount locations.
• Sufficient slack to hide cable behind trim and under carpets if needed.
• Flexible routing supports passenger-side or driver-side installations.

Who this is for: Drivers who want a clean, professional-looking radar detector installation without sacrificing cabin charging ports will benefit most from this Cobra OBDII power cord. It’s ideal for people who prefer a plug-and-play solution over fusebox taps or cigarette lighter adapters, owners of vehicles with limited accessory ports, and anyone planning to mount their detector in a custom or out-of-the-way position. Keep in mind that compatible detectors may require a power-mode change to avoid drawing battery power when your car is off.