Send Music Over Bluetooth to Stereo

I would like to make a device that would stream music via bluetooth from a computer to whatever jack the device is plugged into. If I could have some help, tips, links, that would be great.

I would like to make a device that would stream music via bluetooth from a computer to whatever jack the device is plugged into.

What will the Arduino be doing? Not participating in the streaming of the music.

I was thinking about using the Arduino with a bluetooth shield to connect to whatever device is playing the music.

I was thinking about using the Arduino with a bluetooth shield to connect to whatever device is playing the music.

And then what? Maybe sing along? Do a little dancing? Blink some lights?

Connect how? There is a huge amount of data moving to make recognizable sounds come out, if the music is being sent wirelessly. The Arduino is not fast enough to participate in that process.