Nice find! 
Hello and happy Australia Day!
I am quite sure this has not been described on these forums before.
The question of how to route a cable (without drilling) from the cabin through carbon tub to outside of the vehicle has always been vexing.
I have found a solution that does not involve the front passenger footwell grommet. It does not require a lift or jacking the car.
In both the driver and passenger footwell, there is a large opening / hole that allows passage of cables from inside the cabin, through the front pillar via a rubber tube to supply electrics to the door (the flexible tube you can see with the door open).
If you contort yourself into the footwell with a torch and look through this opening and upward, you will see a 20mm opening that is covered by green glue. This opening runs behind the front wheel liner and allows direct access externally.
If you peel back the front wheel liner from the outside (no need to remove any screws - as you would to access the side indicator light), you will see a square flat plastic plug that has been glued over this opening to seal it shut.
It is very easy to route a cable from beneath the dash, through this opening and direct it to the front or the rear of the vehicle as described by DOCRON here:
DIY: Pioneer Rearview Camera
This is the hole I am talking about:
<iframe src="https://onedrive.live.com/embed?cid=385DB3CEF7EE0DCC&resid=385DB3CEF7EE0DCC!2722&authkey=AMy0OjPdBi3azQ8" width="320" height="178" frameborder="0" scrolling="no"></iframe>
Hope this is helpful. I will be using it for my rear camera install.
Enjoy:wink2:
Are you referring to the hole from inside the cabin to outside and under the car? If that is the question you need to take out the fuse box cover on the passenger side foot well (three screw on the floor, one left and one right, for the left side screw access you have to pull the plastic trim piece of center console that goes under the dash behind the heater controller). Once you remove the fuse box cover just follow the thickest bundle of cables as the go through a hole behind the fuse box, you cab=n pinch a little hole in that rubber grommet to run your cable outside and under the car. It was easier for me then to access it from under the car by removing the front cover under the radiator. Also I have used the tunnel at the center of the chassis to run my cable as all the other cables were going that route and it is not near a hot radiator hose.I can't really figure out the hole. The one drive link does not work. Anyone can help?
I recently installed a TypeS back-up camera. It is wireless and the camera is mounted in a license plate frame with solar cells for power.Hello and happy Australia Day!
I am quite sure this has not been described on these forums before.
The question of how to route a cable (without drilling) from the cabin through carbon tub to outside of the vehicle has always been vexing.
I have found a solution that does not involve the front passenger footwell grommet. It does not require a lift or jacking the car.
In both the driver and passenger footwell, there is a large opening / hole that allows passage of cables from inside the cabin, through the front pillar via a rubber tube to supply electrics to the door (the flexible tube you can see with the door open).
If you contort yourself into the footwell with a torch and look through this opening and upward, you will see a 20mm opening that is covered by green glue. This opening runs behind the front wheel liner and allows direct access externally.
If you peel back the front wheel liner from the outside (no need to remove any screws - as you would to access the side indicator light), you will see a square flat plastic plug that has been glued over this opening to seal it shut.
It is very easy to route a cable from beneath the dash, through this opening and direct it to the front or the rear of the vehicle as described by DOCRON here:
DIY: Pioneer Rearview Camera
This is the hole I am talking about:
<iframe src="https://onedrive.live.com/embed?cid=385DB3CEF7EE0DCC&resid=385DB3CEF7EE0DCC!2722&authkey=AMy0OjPdBi3azQ8" width="320" height="178" frameborder="0" scrolling="no"></iframe>
Hope this is helpful. I will be using it for my rear camera install.
Enjoy:wink2:
Ingenius work, Knievil. Answering more questions that no one has yet asked. This will be invaluable info to some. 👍👍Again, solving a problem that nobody has.
I decided to use OEM style plugs to access a power signal from the reverse light to switch my Pioneer head unit to rear camera view.
The AR part number for the connector is: 71774003
View attachment 135746
View attachment 135747
I bought a repair kit off eBay with both ends.
Search: METZGER Electrics Wire Repair Set 71774003
View attachment 135748
I removed my old tap and wired this in with the correct plugs.
Here you can see I have a T harness with my signal wire.
View attachment 135749
Installed.
View attachment 135750
Only for the most extreme OCD sufferers amongst us.
Look up “double diode isolation” to eliminate your reverse light issue.@Knievil - you solved this problem TWO DAYS after I spent an entire weekend trying to do it!!
Disagree nobody has the issue! It's a great walkthrough, thank you!
I actually also had a switch attached (on a separate cable), so even when driving, I can flick it on too (the only issue is, the reverse light will also flick on)
Appreciate you sharing, even if too late for me!