Bluetooth audio issue

[Watashiwateshdes]

Well time for me to get some ideas on this one from members. Not sure how many others have been using Bluetooth audio to other devices.

I use a Sony bluetooth module HWS-BTA2W which is A2DP compatible and works well with my phone (Samsung Galaxy S). This module is connected to my car stereo via a stereo to stereo cable.

When I connect up the Tablet S, it pairs and works as normal but then sometimes when I come to reconnect it later after work, there is no bass or anything other than treble. I have to either switch the Tablet off or force close the music app (purple icon one) and restart it. Reset has not fixed it both from the side or via the settings. I also tried the other music apps (headphone icon one) and even YouTube

There is no rhyme or reason, just more an annoyance since I would assume that when coming to reconnect, I should not need to start end tasking apps for it to function.

Stumped to say the least...