I found the part no. its TI wl1271 from the "aircrack" thread. Its solds as a "wireless connectivity solution" by ti. I found some promising signals stuff here.
http://processors.wiki.ti.com/index....ivity_Platform
Specifically:
FM Antenna FM_RX_ ANT To an FM antenna on the board RF connector
FM Antenna FM_TX_ ANT To an FM antenna on the board RF connector
So only one ANT input is shown on the schematic. If this a BGA type chip, and the TX_ANT was left unconnected it would be impossible to mod it in. Besides audio input signals and control and such.

i dont see this signal listed on the schematic on page 7 on N6301, its not a common practice but since its a "service" schematic, it may have been left off.
BTW, that CAN halfway down in that above picture is under where the wifi lies.