I use the RoadTop one on ebay. Uses OEM mic. Originally it connects via AUX only but I messaged the seller and they gave me an update that works with using the stock BT audio.
No big issues with it yet. I would say sometime BT connection is just slow at first or I have to re-pair but eh it's not a big deal.
But if money is no obejct I would assume the BimmerTech one is your best option?
|