This will work in option 1 or 2.
If you find that your speakers switch off when changing from A.Aux to DVD you'll need to go into the DVD menu on screen and change output to scart and powerlink rather then just scart. this will stop this from happening.
by the way you'll need to use a.aux function to get the sound from the t.v to come through.
you might need to add this to the beo4 remote and you might need to also add this to the bc2 display so you can find the function when you press list on the bc2 front panel