Can I use a WWAN antenna as the 3rd Wifi Antenna?

[keplenk]

Hi,

I'm planning to replace my flaky minipcie wifi and I need advice about the antenna.

My laptop has two sets of antenna, one for 3G WWAN and the other is for normal wifi. According to the labels, both is "Main" and "Aux". The card that I'm planning to get is an Intel 5300 which has 3 antennas.

Since the normal wifi only has two antennas, can I use the 3G WWAN as a third antenna? If yes, should I plug in the "Main" or the "Aux"?

BTW, I'm not going to use the WWAN antennas.

Thanks!