Windows 7: sam slate i5 bluetooth a2dp streaming to alpine cda-105e with kce400bt

hi all,

new to this fourm but hoping that someone can help me with my problem.
2 days ago i bought a samsung slate 7 for the 6 hr drive i do every second week.

i want to play a movie on (any program, maybe wmp cause it is easy) and have the sound going via bluetooth to the car bluetooth. i have a iphone (only cause they are popular and my last windows phone died after 2 weeks) and that connects to bluetooth like a dream. plays music and even a video with sound all going via bluetooth.

i have tryed everything from updating drivers to rolling back drivers,enabled all the services that it supports. i have even updated the firmware on the alpine kce400bt to 3.11.

i have searched google hi and low for an answer but found only some referance to a2dp

so far i have got to the stage where it connects and says it is all good on the computer but usually on the screen of the deck it should say "bt audio" (like when the iphone is connected) but all im getting is no unit on the screen.

i have enabled all the audio settings in playback devices to go through the bluetooth headset but still nothing.

also the if this problem is solved i will donate $20 to windows 7 fourms

Jake