Constant Power Cable for Garmin Dash Cam Models - Park Mode Power

In this review of the Yoursme constant power cable for Garmin dash cams, the bottom line is simple: this is a practical, no-nonsense solution for drivers who want reliable park mode recording without hardwiring. It plugs into a vehicle's OBD-II port to deliver continuous 5 V power to compatible Garmin dash cams even when the car is turned off, and includes a timer switch plus low-battery protection. For owners of Garmin Dash Cam 46, 47, 56, 57, 66W, 67W, Live, Mini, Mini 2 or Tandem who drive passenger vehicles, this cable offers a straightforward way to keep a camera monitoring the vehicle after you leave.

Key Features

• Wide compatibility: Works with Garmin Dash Cam 46, 47, 56, 57, 66W, 67W, Live, Mini, Mini 2 and Tandem so you can reuse existing cameras without soldering or splicing.
• OBD-II plug-and-play: The cable connects directly to a vehicle OBD-II port for quick installation and provides constant power without removing the car battery.
• Dual output: Two USB-A outputs allow powering up to two dash cams or one dash cam plus an accessory from the same connection.
• Time switch: Built-in timer options (10 minutes, 24 hours, Always on) let you control how long the camera remains powered after exiting the vehicle while re-enabling on motion or restart.
• Low battery protection: The cable monitors vehicle voltage and shuts off at about 12 V to avoid draining the battery, with an LED that indicates power status.
• Operating range: Rated for operation between -20 and 45C (-4 to 113F), suitable for most seasonal climates.

Who It's For

This accessory is aimed at drivers who want continuous parking surveillance from a compatible Garmin dash cam without professional hardwiring. It is especially useful for owners of the listed Garmin models who frequently use park mode and prefer a reversible, plug-in installation.

It is not intended for commercial vehicles that use a J1939 connector, and fleet operators or users of nonlisted dash cams should look for model-specific solutions or a professional hardwire kit if vehicle compatibility differs.

Pros & Cons

Pros

• Easy plug-and-play use via the OBD-II port eliminates complicated wiring for most passenger cars.
• Dual USB-A outputs let you power two devices from one port for flexible camera placement.
• Built-in low battery protection helps prevent accidental battery drain when parked.
• Timer modes provide control over how long the camera stays powered after exiting the vehicle.

Cons

• Not compatible with commercial vehicles using a J1939 connector, so check vehicle type before buying.
• Output limited to 5 V, 1.5 A per port (3.0 A total), which may not support higher-draw accessories.

Specifications

Our Verdict

The Yoursme constant power OBD-II cable is a sensible, cost-effective way to enable park mode on compatible Garmin dash cams without permanent hardwiring. It delivers practical features including dual outputs, a timer switch and low-battery protection, making it a good value for passenger vehicle owners who want straightforward installation and reliable after-hours recording.

Frequently Asked Questions

Will this work with my commercial truck?
No. This cable is not compatible with commercial vehicles that use a J1939 connector; it is designed for most passenger vehicles with a standard OBD-II port.

Can it power two cameras at once?
Yes. The dual USB-A outputs can supply two devices, up to 1.5 A each and 3.0 A combined, suitable for two dash cams within that power envelope.

Does it prevent battery drain?
Yes. The unit monitors vehicle voltage and will cut power at about 12 V to protect the battery, and an LED shows status.