I picked up one of the usb cig lighter replacements.  It fits pretty well and I was able to get the lighter apart (in one piece and un-damaged) following this video : 
https://www.youtube.com/watch?v=85Mjy7RXh2o (thanks to that guy, great video!)
The usb kit came with this cover, and I cannot decide whether or not to use it.  I like the idea of it, but odds are I am going to always be using it (android auto and charging).  Also I think i like the way the unit sits better without it in the plastic...
Thoughts? should the cover stay or go?
With Cover:
 
 
Without: 
