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Help: Firewall passthrough

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Old Aug 27, 2017 | 10:01 PM
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Help: Firewall passthrough
I've just picked up a '13 C300 Sport for a DD. Looking to mount my phone on the A-pillar and run power from the fuse panel under the hood (I don't have one in the cab). I searched, but couldn't find anything other than going under the quarter panel.

Anyone done this or have any ideas?
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Old Aug 28, 2017 | 04:58 PM
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Wrong Way?
I believe that most folks get power from the trunk fuse box....
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Old Aug 28, 2017 | 06:32 PM
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There's a grommet behind the battery on the 2010. May be same on yours.
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Old Aug 30, 2017 | 02:13 PM
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Is that be safe with the airbag in the a pillar?
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Old Aug 30, 2017 | 07:36 PM
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2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
you wire behind the airbag.
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Old Aug 30, 2017 | 07:40 PM
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Originally Posted by michail71
Is that be safe with the airbag in the a pillar?
I'll have to look once I get behind the A-pillar to see how far down the bag goes. The mount should be here next week, if it doesn't look safe I'll mount on the dash. Either way, I need to run power.
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Old Aug 30, 2017 | 08:02 PM
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Originally Posted by Boefadeez
I'll have to look once I get behind the A-pillar to see how far down the bag goes. The mount should be here next week, if it doesn't look safe I'll mount on the dash. Either way, I need to run power.
Look


He also has other video for dash cam, use that as well.
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Old Aug 30, 2017 | 09:00 PM
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Originally Posted by Adi-Benz
Look

https://www.youtube.com/watch?v=YwTyKdIqCFQ&t=534s

He also has other video for dash cam, use that as well.
Thanks for the heads up on running cable from the rear fuse box, very helpful. I think the post about the A-pillar was more about what/where the mount will do/go if the airbag deploys...
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Old Aug 30, 2017 | 09:07 PM
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There's no airbag behind the A-pillar.
Last edited by Boefadeez; Sep 5, 2017 at 07:06 PM. Reason: I did some actual research
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