Where on the glass do you want to put it? I can't say how to pull up the dash, but, if the cam is anywhere near either of the A-pillars, you should be able to run the wire under the A-pillar trim with it being exposed only the last few inches. If you put the cam up near the top of the glass, same thing - you can run the wire under the trim, then drop the last few inches down to the cam.
HTH.
Doug
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