Do you have a good stereo amplifier that just isn't cutting it with the latest technology, has a great sound but without wireless connectivity? ClemRz on instructables has discovered a way to update your amp with a few bucks and a bit of patience.
You will need:
A bluetooth module xs3868
A 3x7cm prototype PCB board
A 470µF electrolytic capacitor
Some single row straight headers
Your iron and solder
for the full tutorial visit; http://www.instructables.com/id/Hack-and-upgrade-your-stereo-system/