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Wire pass thru - engine to interior

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Old 01-10-2018, 05:15 PM
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2015 GLA45 AMG
Wire pass thru - engine to interior

Seeking to run some wires for a laser jammer and wanted to know if anyone had found a good path between engine compartment and interior (i.e. firewall).
Old 01-22-2018, 09:03 PM
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I'm not familiar with that specific engine compartment, but You should be able to follow the lead from the battery to the fusebox and through the firewall. They are usually a rubber gromet and you can usually slip an extra wire through no problem.
Old 01-31-2018, 10:14 AM
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Originally Posted by BahamaBart
Seeking to run some wires for a laser jammer and wanted to know if anyone had found a good path between engine compartment and interior (i.e. firewall).
I ran my wires through passenger side firewall. You can't miss it. There is a much of wires that go through there and then I tapped into the fuse box on the passenger side footwell which worked out really well!
Old 05-23-2018, 01:59 PM
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There is a grommet on the firewall where a clutch slave cyl/hyd line would be if it had a clutch. Just lift the insulation/padding above where you would normally find the clutch pedal and you'll see the grommet, it's pops out fairly easy. That's where I mounted the wires for my boost gauge and it worked out great for me.
Old 05-28-2018, 02:24 PM
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2015 GLA45 AMG
Originally Posted by Bruce Cruise
There is a grommet on the firewall where a clutch slave cyl/hyd line would be if it had a clutch. Just lift the insulation/padding above where you would normally find the clutch pedal and you'll see the grommet, it's pops out fairly easy. That's where I mounted the wires for my boost gauge and it worked out great for me.
thanks. Would love to see your boost gauge set-up. Post a pic if you have one.
Old 05-28-2018, 03:21 PM
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Here you go...





Old 05-29-2018, 09:55 PM
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2015 GLA45 AMG
Very nice. Looks clean.

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