Getting wires through the firewall?

ZPrime · 10-31-2017, 02:07 AM

See subject - anybody know of a good place to get through the firewall with new wires (for a concealed radar/lidar system)? Or for a boost hose to run a manifold-based boost gauge?

horsepower_and_hounds · 10-31-2017, 03:53 AM

There is a hole for the clutch cable, peeps use it for the JB4 OBD cable, pop out the grommet and go thru there

ZPrime · 10-31-2017, 02:25 PM

I haven't even gotten under the dash yet to look at stuff, but I hope that works... my car has a clutch though so I'm thinking that spot might already be filled?

Looking for DIYs on dash disassembly as well...

horsepower_and_hounds · 10-31-2017, 06:38 PM

There will be room too just won't be able to put the grommet back

Ftech1 · 02-18-2018, 09:24 AM

Theres an open plug on the passenger side by the fusebox. Remove the trim panel by the battery positive jump post and you'll see it. Installed an Escort Passport 9500ci 2 days ago.

voyagergab · 02-18-2018, 01:34 PM

Quote:

Originally Posted by Ftech1

Theres an open plug on the passenger side by the fusebox. Remove the trim panel by the battery positive jump post and you'll see it. Installed an Escort Passport 9500ci 2 days ago.

Hi I'm interested in installing a radar detector wire this way as well. Do you have any more info and pics?
Which fuse location did you use?
Where does the cable end up inside?

Ftech1 · 02-20-2018, 09:06 PM

Quote:

Originally Posted by voyagergab

Hi I'm interested in installing a radar detector wire this way as well. Do you have any more info and pics?
Which fuse location did you use?
Where does the cable end up inside?

I used fuse 146 in the trunk. Ran a wire back and used a fuse tap. As for the cables pull the trim panel under the dash on passenger side. There is some insulation that the hole is behind. Push the cable through and it should start showing. I used a guide wire taped to the cable. I'll try to get pics.

voyagergab · 02-20-2018, 09:11 PM

Quote:

Originally Posted by Ftech1

Quote:

Originally Posted by voyagergab

Hi I'm interested in installing a radar detector wire this way as well. Do you have any more info and pics?
Which fuse location did you use?
Where does the cable end up inside?

I used fuse 146 in the trunk. Ran a wire back and used a fuse tap. As for the cables pull the trim panel under the dash on passenger side. There is some insulation that the hole is behind. Push the cable through and it should start showing. I used a guide wire taped to the cable. I'll try to get pics.

Thanks very much.

So you wired somethings to both truck and engine bay fuse boxes.

Ftech1 · 02-22-2018, 08:39 PM

Quote:

Originally Posted by voyagergab

Thanks very much.

So you wired somethings to both truck and engine bay fuse boxes.

Just to the trunk fuse box.

10-31-2017, 02:07 AM	#1
ZPrime I INDIC8 612 Rep 1,286 Posts Drives: 2018 LBB M2, 6MT Join Date: Dec 2016 Location: Cleveland, OH iTrader: (0) Garage List 2018 BMW M2 [9.50]	Getting wires through the firewall? See subject - anybody know of a good place to get through the firewall with new wires (for a concealed radar/lidar system)? Or for a boost hose to run a manifold-based boost gauge? __________________ 2004 Matrix XRS 6MT => 2008 VW R32 DSG => 2012 Audi TTRS 6MT => 2018 BMW ///M2 6MT I'm an IT guy by trade and tech nerd by choice. I like HPDEs, parts of US Hwy 129, NC 28, and the Cherohala Skyway. I'm also a fan of aural pleasure.
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10-31-2017, 03:53 AM	#2
horsepower_and_hounds Brigadier General 1836 Rep 4,203 Posts Drives: BMW Join Date: Aug 2012 Location: USA iTrader: (9)	There is a hole for the clutch cable, peeps use it for the JB4 OBD cable, pop out the grommet and go thru there
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10-31-2017, 02:25 PM	#3
ZPrime I INDIC8 612 Rep 1,286 Posts Drives: 2018 LBB M2, 6MT Join Date: Dec 2016 Location: Cleveland, OH iTrader: (0) Garage List 2018 BMW M2 [9.50]	I haven't even gotten under the dash yet to look at stuff, but I hope that works... my car has a clutch though so I'm thinking that spot might already be filled? Looking for DIYs on dash disassembly as well... __________________ 2004 Matrix XRS 6MT => 2008 VW R32 DSG => 2012 Audi TTRS 6MT => 2018 BMW ///M2 6MT I'm an IT guy by trade and tech nerd by choice. I like HPDEs, parts of US Hwy 129, NC 28, and the Cherohala Skyway. I'm also a fan of aural pleasure.
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10-31-2017, 06:38 PM	#4
horsepower_and_hounds Brigadier General 1836 Rep 4,203 Posts Drives: BMW Join Date: Aug 2012 Location: USA iTrader: (9)	There will be room too just won't be able to put the grommet back
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02-18-2018, 09:24 AM	#5
Ftech1 Enlisted Member 41 Rep 33 Posts Drives: 2021 M2 COMP, 2018 M3 Y Join Date: Oct 2012 Location: Chicago iTrader: (0)	Theres an open plug on the passenger side by the fusebox. Remove the trim panel by the battery positive jump post and you'll see it. Installed an Escort Passport 9500ci 2 days ago.
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