When it comes to GPS tracking, one of the most common questions we hear is: Should I go with an OBD-II plug-in tracker or a hardwired one? Both have their place — the right choice depends on your vehicle type, use case, and how much flexibility you need.
What Is an OBD-II GPS Tracker?
An OBD-II tracker plugs directly into your vehicle's OBD-II diagnostic port, typically located under the dashboard near the steering column. All cars and light commercial vehicles sold in Australia after 2006 have this port.
Pros:
- No installation required — plug in and go
- Easy to move between vehicles
- Access to engine diagnostics and fault codes
- Ideal for short-term use or rental fleets
Cons:
- Visible and easy to remove or unplug
- Only works when plugged in (no backup battery)
- Not suitable for motorcycles, older vehicles, or heavy machinery
What Is a Hardwired GPS Tracker?
A hardwired tracker is professionally installed and connected directly to your vehicle's electrical system. It's typically hidden within the vehicle's interior, making it much harder to detect or tamper with.
Pros:
- Tamper-resistant and discreet
- Continuous power — always on
- Can include backup battery for post-theft tracking
- Works on any vehicle type including trucks, motorcycles, and plant equipment
Cons:
- Requires professional installation
- Not easily moved between vehicles
- Higher upfront cost
Side-by-Side Comparison
| Feature | OBD-II | Hardwired |
|---|---|---|
| Installation | Self-install (seconds) | Professional required |
| Tamper resistance | Low | High |
| Vehicle compatibility | 2006+ cars & vans | All vehicles |
| Portability | High | Low |
| Engine diagnostics | Yes | Varies by model |
| Best for | Rental fleets, SMBs | High-value assets, theft prevention |
Which Should You Choose?
Choose OBD-II if: You need quick deployment across multiple vehicles, you manage a rental fleet, or you want to trial GPS tracking before committing to a full installation.
Choose hardwired if: You have high-value vehicles, you've experienced theft before, you need to track motorcycles or heavy equipment, or you want a permanent, tamper-proof solution.
Many businesses use both — OBD-II for their everyday fleet vehicles and hardwired for their most valuable assets.
Shop GPS Trackers at Techtonika Autolink
We stock both OBD-II and hardwired GPS trackers designed for Australian conditions. Our team can help you choose the right solution for your specific needs.
Browse our full range today.