Alfa Romeo 4C Forums banner
1 - 14 of 14 Posts

· Registered
Joined
·
1,053 Posts
Discussion Starter · #1 ·
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:


http://4c-forums.com/408930-post7.html


This is the hole I am talking about:


<iframe src="https://onedrive.live.com/embed?cid...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:
 

· Registered
Joined
·
2,595 Posts
Nice find! :)
 

· Registered
Joined
·
2,595 Posts
BTW, talked to my audio guy, he said just wrap wires in thermoflect tape and use stainless zip ties and wires should be fine. :) I ordered from Amazon, it'll be here on Friday.
 

· Registered
Joined
·
1,386 Posts
If it's just the camera video cable
It's pretty thin.
You can remove the small storage box between the seats
4 screws
And behind it is small compartment that leads to the engine
If you stuff the wire in there from the engine side
If you stick your hand into this hole that had the storage compartment
You can then pull the wire I to the cabin
Run it along the center console, till you get to the stereo
Since the wire is so thin, you can then reinstall the storage box
It will squish the wire, but it won't cut it
As it has a gasket around the edge that meets the carbon fiber
 

· Registered
Joined
·
912 Posts
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:

I can't really figure out the hole. The one drive link does not work. Anyone can help?
 

· Registered
2016 Spider
Joined
·
212 Posts
I can't really figure out the hole. The one drive link does not work. Anyone can help?
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.
 

· Registered
Joined
·
29 Posts
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:
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.
 

· Registered
Joined
·
1,053 Posts
Discussion Starter · #11 · (Edited)
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
Handwriting Font Pattern Paper Writing

Hood Grey Material property Tints and shades Human leg


I bought a repair kit off eBay with both ends.
Search: METZGER Electrics Wire Repair Set 71774003

Material property Cable Font Data transfer cable Audio equipment


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.

Hood Bumper Automotive exterior Automotive lighting Automotive design


Installed.
Hood Luggage and bags Automotive design Bag Automotive tire


Only for the most extreme OCD sufferers amongst us.
 

· Super Moderator
4C SE, Giulietta Vel, 147, Sud, Guzzi 1100 Sport, Guzzi Le Mans MkV
Joined
·
13,155 Posts
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.
Ingenius work, Knievil. Answering more questions that no one has yet asked. This will be invaluable info to some. 👍👍
 

· Registered
Joined
·
222 Posts
@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!
 

· Registered
Joined
·
1,053 Posts
Discussion Starter · #14 ·
@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!
Look up “double diode isolation” to eliminate your reverse light issue.
 
1 - 14 of 14 Posts
Top