2.5mm to 4Pin Dash Cam Cable 6M - Rear Camera Extension for Carplay

In this review the reviewer tested the 2.5mm to 4Pin Dash Cam Cable (6M) as a practical solution for extending a rear view camera feed to a dash cam or Carplay screen. The bottom line: this cable is for drivers who need a reliable, plug-and-play extension between a rear backup camera and an in-dash recorder or monitor, with the single biggest reason to buy being its long 6 m (19.68 ft) reach combined with a clear wiring layout that includes a dedicated reversing trigger line.

Key Features

• Length: The 6 m (19.68 ft) cable provides ample reach for most sedans, SUVs, and trucks without needing splices or additional joins.
• Connector conversion: The 2.5 mm to 4Pin conversion lets older 2.5 mm dash cam setups connect to newer 4Pin camera inputs for a straightforward extension.
• Reversing trigger: The red wire serves as a reversing trigger line so the monitor can detect reverse gear and switch the display automatically.
• Power handling: Rated for DC12V operation and clear guidance to install a DC 24V to 12V step down converter when needed protects equipment in vehicles with 24V systems.
• Video support: Compatible with AHD 1080P and 720P vehicle backup cameras, supporting high-definition backup video over the run.

Who It's For

This cable is best for DIY installers and professional fitters who need a tidy, long reach extension between a rear view camera and a dash cam or Carplay screen without running multiple smaller cables. It suits owners replacing a damaged in-line cable or extending an existing camera where the original connectors do not match.

Not every buyer needs this specific converter style; if a vehicle already uses the same connector type end-to-end or requires integrated power conversion, shoppers should consider matched harnesses or a prewired camera kit instead.

Pros & Cons

Pros

• Long 6 m length removes the need for joins in most vehicles and keeps the install neater.
• Clear red reversing trigger wire simplifies integration with displays that accept a reverse input.
• Supports AHD 1080P and 720P cameras for usable image quality on compatible monitors.

Cons

• Requires a DC 24V to 12V step down converter when used in 24V vehicle systems, adding extra cost and installation steps.

Specifications

Our Verdict

The 2.5mm to 4Pin Dash Cam Cable (6 m) is a sensible, no-nonsense extension for anyone fitting or repairing a rear camera connection where extra reach and a reversing trigger are needed. It offers good value for users who already have DC12V systems and compatible AHD cameras; those with 24V electrical systems should budget for a step down converter and factor in the extra installation effort.

Frequently Asked Questions

Can I use this cable on a 24V truck?
Use a DC 24V to 12V step down converter before connecting the cable to protect the camera and dash equipment.

Will this support HD cameras?
Yes, it supports AHD 1080P and 720P vehicle backup cameras as specified.

Is the red wire already wired as a reverse trigger?
Yes, the red line functions as the reversing trigger line for automatic display switching.