Install order for a motorcycle dash cam: test it on USB power, mount both lenses away from vibration, then wire red, black, and ACC.
The install is straightforward — mostly picking stable spots and respecting wiring order. You’ll need the included bracket, a wrench, zip ties, and your bike’s manual. It comes down to four steps: pre-test the camera, mount the front and rear lenses, route cables away from trouble, and connect power with the ignition off. Kits from VIOFO, VANTRUE, VSYSTO, and Mercylion all follow this pattern, with small differences in bracket style and wiring labels.
Test the Camera Before You Mount Anything
Always bench-test the camera on a USB power bank or adapter before it goes near the bike. Power up, confirm both front and rear feeds appear, and format the memory card inside the camera. A short run proves the card writes correctly. Then switch the motorcycle fully off — every major manual says to power the bike down before installation and leave it off until done.
Mount the Cameras Where Vibration Won’t Ruin the Video
Camera placement decides video quality more than the camera does. Put the front lens where it has an unobstructed view ahead, and the rear lens where it sees clearly behind — the tail section or rack, never the front fender, which vibrates enough to blur footage.
- Main unit: a protected spot under the seat or in the tail, fixed with cable ties or the included bracket so it can’t loosen.
- Front camera: a bar or fairing mount with a clear forward view and enough cable slack to steer lock to lock without pinching.
- Rear camera: the tail section or rack, angled so the plate and traffic behind stay visible.
Keep the lens reachable for cleaning and use the supplied bracket hardware rather than improvised parts. Keep the Wi-Fi antenna’s signal area clear of metal and facing upward — blocked or downward-facing antennas drop connections.
How Should You Wire the Power?
Motorcycle dash cams share one wiring standard: red to battery positive, black to battery negative, and an ACC wire to an ignition-switched circuit so the camera starts and stops with the key. The labels are printed on each kit’s cable, and the pattern holds across brands.
| Wire | Connect To | Why It Matters |
|---|---|---|
| Red | Battery positive | Main power feed for the camera |
| Black | Battery negative | Completes the circuit |
| ACC | Ignition-switched circuit or fuse box | Camera powers on and off with the key |
| Power cable | 12V–24V input, 5V/2A output on some kits | Must match your bike’s electrical system |
Route every cable away from the ignition system, xenon lamps, and other high-voltage components, and never bend or twist connectors while installing. Keep wires clear of moving parts and heat sources, then secure them with ties. Pull the bars to full lock both ways to confirm nothing pinches, and leave a drip loop on any exposed connector so water runs off. If your kit’s GPS module has a sky-facing antenna, point it up, and treat the power module as vibration-sensitive — don’t let it dangle. Check the input voltage in your manual before connecting anything. Some units are strictly 12V; others accept 12V–24V and deliver 5V/2A to the camera. Match the system, or the unit will under- or over-power.
Turn the ignition on and confirm the camera boots, then take a short ride and review the footage before reassembling the bodywork. Many kits include parking mode, which works only when the ACC wire is connected to a switched source — without it, the camera can’t tell when the bike is off. Brands differ mainly in hardware quality; If you’re still choosing, our tested motorcycle dash cam roundup compares the current front-runners side by side.
FAQs
Do I need to hardwire the dash cam, or can I use a USB port?
Hardwiring is standard because USB ports turn off with the bike and won’t power a camera that needs to start recording the moment you ride. The ACC wire gives automatic on/off with ignition. Some compact cams run on a USB battery bank, but that means manual start/stop and no parking protection.
Where should the rear camera mount?
Mount it where it has a clear view of the road behind, typically on the tail section, luggage rack, or under the rear seat cowl. Keep it off the fender, which vibrates excessively, and angle it so the plate and the car behind are both visible. Secure the cable along the frame so it can’t flap or snag.
Can I install any dash cam on my motorcycle?
Any camera will record, but the kit should match your bike’s electrical system.
References & Sources
- VIOFO. “MT1 Motorcycle Dash Camera User Manual.” Documents the MT1 mounting sequence and Ground/ACC/Power wiring.
- Blueskysea. “User Manual Downloads.” Hosts official manuals that include USB pre-test and cable-routing cautions.
- Denali Electronics. “Motorcycle Dash Cams.” Details a dash cam lineup that ships with mounting hardware and installation instructions.