2017 F250 Replacement Microphone Holder for Stock Location

I replaced the factory stereo in my 2017 F250 (Sync 1 w/ 4in screen).  I used a Tesla-style Android head unit with the 12 in screen. 

The built-in microphone (as well as the replacement mic they give you) is terrible, no one could understand me - echoes, poor sound quality, noise from the vent fan, etc.  I wanted to replace it the the factory mic but you cannot as the factory mic has a different connector.  So I removed the overhead console and removed the stock microphone - it just unclips.  After some research I found a cheap (like under $10) replacement mic on Amazon (Fingerlakes Mic - https://www.amazon.com/dp/B015KY5J7Y?ref=ppx_yo2ov_dt_b_fed_asin_title) that got good reviews.  I tried it and for the money it works great. 

I wanted the replacement mic to use the factory location as I am sure Ford put some engineering into the location chosen for the factory microphone so I didn't want to reinvent the wheel and I did not want exposed wires anywhere.  So, I designed this microphone holder so the replacement Fingerlakes mic will work in the original factory location. 

You need to carefully disassemble the Fingerlake mic by taking it out of the housing - I just gingerly cut the housing away with dikes to expose the mic capsule and its tiny wires.  I then pushed in down into the center hole of the printed adapter and hot-melt glued the wired to the adapter to help hold them in place.  You then just need to run the wire across the headliner to the a-pillar, down the a-pillar trim to under the dash and then to the back of the stereo and plug it in.  I must say this setup works great!

I printed mine in some ASA I had - I would recommend something better than PLA for this as it is in a car. 

I am learning Freecad but I did include the Freecad file for those who might want to alter the design for their needs.

Good luck with your project.