VIOFO HK4 ACC Hardwire Cable for Dash Cam – 12–24V, Low Voltage Protection, Parking Mode

Overview

The VIOFO HK4 ACC Hardwire Cable is a compact, robust wiring solution designed to keep your dash cam powered even when the engine is off. By drawing power directly from your vehicle, it enables 24‑hour parking surveillance, helping you capture important moments that might otherwise be missed. The HK4 is built for real-world driving and parking scenarios, offering a clean, discrete installation that prioritizes reliability and ease of use.

Compatibility spans several popular VIOFO models, including A329, A229Plus, A229Pro, A119Mini 2, A139Pro, WM1, and T130. The cable connects to a 12–24V electrical system, with clearly labeled leads to simplify setup. A 4 m (13.1 ft) cable length gives you flexible routing behind the dash, under trim, or along panels for a tidy, professional result.

Key features and how they help

• 24‑hour parking surveillance powered by the vehicle’s electrical system, enabling continuous recording when the engine is off.
• Low voltage protection with four cut‑off levels to help preserve your car battery while still capturing footage when possible.
• Automatic parking mode via ACC detection—the dash cam shifts to parking mode when the engine is off and returns to normal recording when the engine starts.
• 12–24V compatibility supports a wide range of cars, trucks, SUVs, and larger vehicles without adapters.
• 13.1 ft (4 m) cable with colored leads: red for constant power, yellow for ACC, and a ground connection for secure setup.

What to know before installing

• Fuse taps not included — you’ll need fuse taps to complete the circuit. If you want an 8‑piece fuse tap set, check ASIN B0CHDXPGP1. Separate fuse taps are available under ASIN B08SJZJCV5.
• Compatibility reminder — HK4 is designed for VIOFO A329, A229Plus, A229Pro, A119Mini 2, A139Pro, WM1, and T130 dash cams.

Real‑world usage scenarios

Imagine urban parking lots, overnight street parking, or fleet deployments where evidence from parked vehicles can be valuable. With HK4, your dash cam can continue recording during off hours, while the automatic switch to parking mode helps conserve power when the engine is off. The result is a practical power solution that supports ongoing monitoring without requiring manual adjustments.

Use cases vary by vehicle and driving habits, but the HK4’s optional voltage thresholds provide flexibility to balance power needs with battery health. The cable’s routing options let you keep the installation neat and unobtrusive, so you can focus on the road when you’re driving and on the footage when you’re parked.

Additional notes

For best results, follow vehicle‑specific electrical safety guidelines and ensure the fuse taps are correctly installed. This accessory is a deliberate upgrade for drivers who want a steady power supply for their dash cam during parking and at rest, without promising outcomes in every situation.