I woudl say its a 100% chance that you will need to open the unit and add a pigtail of some kind to allow for ext ent connections.
If you wish to use the internal Card (and the card is Heremes Based) then internally you will either have a PCCARD with the standard LUCENT pigtail connections to the internal antenna. Otherwise it will be a MINIPCI card with the Snap on Button Connectors, which are not too complicated to remove but getting a pigtail to ext connector will be hard as hell...
here is a link to soem info I foudn on the lucent type care most likely to be used...
http://forums.netstumbler.com/showth...ight=connector
Second Post in is the info...