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      11-04-2012, 11:53 AM   #4
Bill B.
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Drives: '12 135i, '13 X135i '15 S1000R
Join Date: Sep 2011
Location: Cary, NC

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Step 4 - Run Wire

Step 4 - Run Wire
With everything exposed, the 8 ft straight power cord can be fed from the windshield mount point all the way to the fuse box behind the glove box.

Leaving a few inches slack for the V1, the wire can easily be tucked up into the headliner with a nylon trim tool.

Where the headliner would be covered by the A trim pillar, care must be taken to wrap the wire appropriately.

Now, run the cable down the A pillar with the existing wire bundle. I used very small wire ties, turning the locking end away from the airbag, so there are no sharp edges.

Then, using a worklight shining from underneath the dash, the wire can be fed down through the dash. I used a ball chain and magnets to feed the wire, but a thin, flexible rod with the wire taped to it could also be used.

Collect all the slack wire around the metal dash mounting brackets to ensure its not rubbing against the sharp metal edges.
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