I assume that you do not have a DAC? Your current integrated has a DAC built in if it has Bluetooth. You either need an outboard DAC with BT or a separate DAC and separate BT receiver. "Wyred 4 Sound" has one of the best outboard Bluetooth streamer/reclocker it’s called the bLink. And it sounds fantastic! You will not believe how good BT can sound. http://wyred4sound.com/products/digital-converters/blink It will however require a separate DAC.
Or for a simpler less expensive option try one of these: http://audioengineusa.com/shop/adapters/b1-bluetooth-music-receiver/
It has a DAC built in for an all in one solution that will hook right up to your integrated amp with an RCA cable.
The Wyred 4 Sound bLink and good DAC will sound better though.
Good luck!
Or for a simpler less expensive option try one of these: http://audioengineusa.com/shop/adapters/b1-bluetooth-music-receiver/
It has a DAC built in for an all in one solution that will hook right up to your integrated amp with an RCA cable.
The Wyred 4 Sound bLink and good DAC will sound better though.
Good luck!