can A31P 2654MU3 wireless upgradable?

[rbi]

Does it have in-built antenna while the specifications of it are based on 2653R3U except for the memory difference? I think IBM must have some reason to build this different series model not just based on the memory. Can any one help? Thanks.

[tfflivemb2]

I don't believe that the Mu3 model has the antenna installed, the same as the R3u. I was looking at the tawbook.pdf, and under "Mini-PCI" it says open, unlike other models that say "Wireless upgradeable". The upgradeable models will already have the antenna, but not the card.