I am trying to run a mixing console through line in and then out to Bluetooth speaker. it works on my internal speakers or if i plug in external speakers. .if I connect to Bluetooth - altec lansing t1500 speaker - I get about 3 seconds of sound then no audio.. however , if i start a music app or other sound program and run it at zero volume, the line in audio plays on blue tooth. i have disabled power management on bluetooth. any ideas on how to fix this?