Sound on laptop docking station

[William M. Quarles]

Hey all,

Does anybody out there on these three lists know how to get Fedora to 
reroute the sound from my laptop's speakers to the line out on the 
docking station to which the laptop is connected? I'm using a Dell 
Latitude C640 with a Dell C Dock II. The other outputs are software 
activated usually, but the signals still come from the laptop's 
integrated sound card (i.e. there is no actual sound hardware installed 
in the docking station).

Thanks,
William