Not looking too promising regarding the bluetooth module...
My original thought was to add speakers terminals to the soundbar, power it/the speakers by a car stereo (hidden below or to the side of the TV) & controlled by the car stereo remote... So I would need to leave the IR sensor "open" so the remote could communicate with it...
WHEN I have time to do this, I'll let you know how this turns out... By the way, a friend on the forum recently gave me an Alpine car receiver which should work great! I have an extra remote...
Thanks for reading/following...
George