I moved my oem location for the mic grill closer to the driver side where my head is, and more aft in the cabin where the other passengers are.
I didn't have a problem with the mic before, but I'm told that my voice comes across more clearer and louder now.
I tried switching it over to the sunroof switch hole but I quickly realized that the sunroof switch is bigger and the switch hole is bigger than the mic grill and mic grill hole. So the mic grill was too small for the sunroof switch's hole and the sunroof switch didn't even fit into the mic grill's hole. So I decided to create a new cut out hole for the mic grill that was in a new position. I also added a BMW Bluetooth Assist/SOS switch at the same time, which incidentally our cars are prewired for and just filed down the original mic grill hole so that the sunroof switch could fit in there.
The BMW Bluetooth Assist button can be bought off eBay for about $10 to $25 (DO NOT buy the ones Murad Motors sells as he overprices his switches to $50 and they don't come prewired). Make sure you get the older style switch with the two buttons like in my pictures below. This is the switch our cars are prewired for and you will find the wiring for this switch inside your sunroof switch hatch.
Follow these steps.
Mark out your outline...make it slightly smaller than the actual hole that you will use
Then get a sharp knife and cut away at the plastic until you feel it flex at the cut so it just snaps off.
Your finished hole will be smaller which is good because you DO NOT want it to be too big.
So get your file and file down the edges. The plastic will file away really quickly so go slow.
If you are placing the sunroof switch on the original mic grill spot you will have to file that hole down as well since the mic grill hole is smaller than the sunroof switch
Finished product. Make sure everything is lined up and if you mess up just go down to the dealership and buy another hatch lid cover as they only cost around $17 to $23.
DO NOT buy the junkyard ones off eBay as those junk yard sellers tend to want $40 - $60 for the same part in dirty used condition. I have confirmed that the BMW dealership sells these parts for $17 to $23!
Inside view of the hatch showing the new location of my parrot ck3000 mic. I used a drop of krazy glue to get it to stay in place.
Final view when said and done!