@jallidin
There are lot of other repos besides the "Extras" repository. Now some people will tell you it's dangerous due to incompatibilities with certain packages, but the same could be said for packages in the Extras repos, so I consider that hogwash.

http://www.gronmayer.com/it/ indexes a lot of the repos (but NOT all of them) I keep meaning to add some of the others I come across but it slips my mind and I lose bookmarks.

https://garage.maemo.org/frs/?group_...elease_id=1473 I think.

Are you sure it's not the headphones? Mine work pretty well except if I lock the screen (the N810 goes into standby). My particular bt headphones have a 3.5mm adapter=>bt dongle and perhaps one would help you (they can be found on places like dealextreme.com)