I ‘converted’ my overture to bluetooth – a pair ofbluetooth transmitter/receivers – one in the headphone jack (if there is one) and the other split between two beolab 8000 speakers.
Works a treat – comparable (to my ears) sound to using cables to the speakers.
the units are inexpensive , so worth a go – plus side is you can also connect tv/phone/ipad etc. to the speakers if bluetooth enabled 🙂