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      03-13-2018, 09:59 PM   #1
steeve13m
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How to pass USB extension cable through firewall for JB4 direct OTG connection

I am trying to pass a USB 10ft extension OTG cable through the firewall to direct connect JB4 unit to an Android phone and bypass the intermittent/unstable JB4 mobile bluetooth module option....

Anyone know how to pass the firewall for a large plug....the USB head is too large to pass in the opening highlighted in pic attached.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Last edited by steeve13m; 03-13-2018 at 10:10 PM..
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      03-14-2018, 08:53 PM   #2
KillerM5
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There is a rubber plug in the firewall that you can pop out. Super easy once you see it.
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      03-16-2018, 02:48 PM   #3
steeve13m
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ok found it...there two rubber grommets on the driver side firewall...the bottom one in pic is too small...the top one worked fine.....

I got a direct connection from JB4 unit to my phone using the usb extension cord and a type C converter to my Samsung.......but it doesnt charge the phone at the same time....

Any ideas for those who made a direct OTG connection and found a way to charge phone....I tried a powered usb hub with no luck......maybe a usb switch box?
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2019 F90 M5 Competition - Marina bay Blue Pearl - Executive and Bowers & Wilkins package
Gone:2013 F10 M5-DCT-Montecarlo Pearl Blue-BBMR 800 Stage 1 system 700whp+(93oct)
2004 Lamborghini Gallardo-Manual-Giallo Midas Pearl Yellow-Modified
2018 Range Rover Velar S-White
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