From a system dump, it looks like Bluetooth and WiFi are via the very popular for 2014 Broadcom BCM4354.
http://www.broadcom.com/press/release.php?id=s827695
http://www.techinsights.com/reports-and-subscriptions/open-market-reports/Report-Profile/BCM4354/
I doubt the FM antenna pin will be connected to the wired headset jack like the Nexus One (HTC Desire). But as my sig implies, I'd be very happy if so.
http://www.broadcom.com/press/release.php?id=s827695
Key Features
The Broadcom BCM4354 is a dual-band combo chip for smartphones and tablets that supports 5G Wi-Fi 2x2 MIMO, Bluetooth (BT) 4.1/BLE, Rezence wireless charging support and FM radio receiver.
http://www.techinsights.com/reports-and-subscriptions/open-market-reports/Report-Profile/BCM4354/
I doubt the FM antenna pin will be connected to the wired headset jack like the Nexus One (HTC Desire). But as my sig implies, I'd be very happy if so.