So I bought this 802.11n card for my iMac Core Duo (http://www.quickertek.com/products/80211N_upgrade_imac.php). I've dismantled the iMac and put the card in as instructed by the somewhat shoddy manual (http://www.quickertek.com/pdf_manuals/nCard_iMac.pdf) BUT it says "disconnect the two cables connected to the old AirPort card." See, there was only a single grey antenna connected to the old one and..."Reconnect the two antenna wires, there will be an audible click indicating a good connection has been made." Wait, there are THREE connectors for antennas on the new card!? PLUS, the new card came boxed with some sort of external antenna which is not even mentioned in the manual. I assume it's meant to go in one of the 3 connectors. What do I do?