COBRA radar detector OBDII to barrel power cord — 9.8 ft hardwire cable, keeps cigarette lighter free

This Cobra OBDII-to-barrel power cord hardwires your radar detector to your vehicle’s diagnostic port for a neat, reliable 12V source without tapping interior wiring.

If you want a tidy install that keeps USB and cigarette lighter sockets free, this Cobra power cable supplies continuous vehicle power through the standard OBDII port. It’s a plug-and-play solution for cars, trucks and SUVs with reachable OBDII sockets, providing a durable 9.8 ft lead so you can route the cable cleanly to your windshield or dash-mounted detector. Note: compatible Cobra detectors may require a power-mode change to avoid battery drain when the engine is off.

How does this cord simplify installation compared with a cigarette lighter adapter?

Instead of occupying the cigarette lighter or a USB outlet, the Cobra OBDII power cord draws power directly from the vehicle’s OBDII port. That removes clutter, reduces the chance of accidental disconnection, and preserves power outlets for passenger devices. Installation is typically faster because no fusebox access or wire-tapping is needed.

• Plugs into standard OBDII diagnostic port—no cut wires or fusebox access
• 9.8 ft cable length for flexible routing to windshield or dash mounts
• Leaves cigarette lighter and USB ports available for other devices
• Clean, concealed routing reduces visible cable clutter in the cabin

Will this cord work with my vehicle and radar detector?

The cord is designed for any modern vehicle equipped with an industry-standard OBDII port—found on most cars and light trucks sold since 1996. It connects to radar detectors that accept a barrel-style 12V input. Confirm your detector’s barrel plug size and whether the model supports OBDII-sourced power in its settings to prevent battery drain when parked.

• Compatible with standard OBDII-enabled vehicles (post-1996 models in many regions)
• Requires a radar detector with a matching barrel power inlet
• Some detectors need a setting change to avoid constant draw when engine is off
• Not vehicle-specific—works across multiple makes and models

How do I route and secure the 9.8 ft cable for a clean look?

The long cable length lets you hide the cord along trim panels, behind the dash, or beneath headliners to keep it out of sight. Use factory gaps, the A-pillar trim, and included cable ties or adhesive clips to secure the line without damaging interior panels. Plan the route before plugging in to ensure the detector’s mounting position isn’t compromised by tension on the cord.

• Route under weatherstripping or behind trim to conceal the cord
• Use cable ties or adhesive clips for secure, rattle-free installation
• Avoid sharp bends and pinch points near doors and glove boxes
• Test detector position and cable slack before final trim reinstallation

Does using the OBDII port affect vehicle diagnostics or battery health?

When installed correctly, the Cobra cord draws nominal accessory power and typically does not interfere with vehicle diagnostic systems. However, continuous power draw when the vehicle is off can slowly deplete the battery if the detector remains powered; many detectors offer a setting to prevent this. If unsure, consult your vehicle manual or a qualified installer.

• Designed for safe accessory power from the OBDII port
• May require detector power-mode changes to avoid battery drain
• No permanent modifications to vehicle electrical systems are necessary
• Remove or unplug when performing certain vehicle diagnostics if instructed

Who is this for: This Cobra OBDII-to-barrel power cord is ideal for drivers who prefer a permanent-looking, user-installable hardwire solution that preserves interior power sockets. It suits owners of modern OBDII-equipped vehicles who mount their radar detector on the windshield or dash and want a tidy, secure cable routing option without tapping fuses or cutting factory wiring. Choose this cable if you want a reliable connection, flexible routing, and a cleaner cabin appearance.