While a dedicated 2-channel dash cam offers front and rear protection in a simpler form factor than two separate 1-channel systems, they can still pose quite a challenge to install, especially in hatchbacks and SUV's. This is because the rear window where the camera is mounted moves up and down rather than a fixed position on most sedans and coupes. Some customers are perfectly happy having the wire dangle between the headliner and the liftgate but for those who want the cleanest install, the best way is to go through the hoses between the chassis and liftgate. If there is any trim on the liftgate it's best to remove them to hide the rear camera cable under such as in our Lexus NX installation video.
Typically there are 1 or 2 hoses that connect to the liftgate and it's best to give them a squeeze to check which one has more wiggle room before attempting to run the wire. On some vehicles such as the Hyundai Tucson the hose is thick enough with wiggle room to run the wire through by hand without any special tools or techniques. On other vehicles the shape of the hose and the tighter fit makes it difficult to run this wire by hand.
In these cases our installer will take a thin piece of wire and thread it through the hose first, the wire has to be strong enough to maintain it's shape. The thinner wire should go through the hose fairly easily but also give you the leverage needed to pull the connecting cable through, some customers have used coat hangers and long zip-ties to pull wire through as well. Once the wire has been threaded through our installer will take some electrical tape and attach the camera's connecting cable to the wire, the tape needs to cover the tip/plug of the wire entirely to protect the pins of the cable from damage. It's also a good idea to spray some lubricant on the taped part so it will glide through the hose easier, hand soap will also work as a lubricant (Be sure not to get any lubricant on the interior trim/carpet as it may be difficult to remove). With these steps complete you should be able to simply pull the wire through!
Our installer running the wire on a 2015 BMW X5 (F15)
- For some cameras such as the Blackvue DR650GW-2CH or BlackSys CH-100B there are dedicated front and rear ends of the plug. On the Blackvue the rear plug is a straight tip versus the front which has a right angle tip, the straight tip is easier to pull through these hoses.
- When mounting the rear camera make sure that it's in a position that the rear wiper clears
- Make sure to install the camera AFTER getting a window tint or else you will need to reinstall the rear camera and use a new piece of tape
- The rear camera will mount on any flat and smooth surface, another way to mount it is to make a mounting surface like our customer did on his Toyota 4Runner