There's two different types of cisco aironet that I know of to this date. One is the legacy 802.11b 5V device which will not show up in lspci. These are the real aironet powered chipsets and I would not be putting high hopes of getting them to work well under bt4 for that matter.
Then there's the later version of cisco aironet which is 3.3V and it will show up under lspci as atheros chipset. These devices work on 802.11a/b/g and should work with bt4 without too much issues.
It would help if you tell me exactly which type of card you have. I personally do own older version of cisco aironet (namely 350 series)



) and generally feeling quite annoyed that I'd lost 6 hours of my life, It, at no point, acknowledged the fact that i have a wireless card. 
