Bluetooth radio build.

Do you happen to remember the parts that you used? Got any links for them?
No, I did this a couple years ago. Bought the modules off ebay.

Edit: found this by searching my history.

LN-BT02 Bluetooth 4.0 Audio Receiver Board Wireless Stereo Sound Module For Car | eBay
TPA3116 TPA3116D2 120W+120W Dual-Channel Stereo Digital Audio Amplifier 12V~24V | eBay