Bluetooth Car Audio Cassete When No Jack in Your Car Stereo !

Problem: Build in car audio system without audio jack output.
Solution: Audio Compact Cassette with integrated A2DP bluetooth to listen music directly from your phone.

Future steps
- build in bluetooth with hands-free function (to receive and answer calls)
- build in Micro sd slot in cassette

What we need:
1. Audio Compact Cassette adapter [cost about 1 USD]
2. A2DP Bluetooth receiver with battery  [ cost about 10 USD] finally I take this one from Ebay (print screen from ebay in attached pdf if link is broken or item is moved to archive)

What is important !!!
We can't use components from standard handsfree. Most of them did not have A2DP bluetooth profile, and our phones recognize them as a handsfree not speakers system. In case of android phones there is a solution Btmono app, in case of iphone only for jaliebroken phones.

1. Gently remove covers from your bluetooth receiver, and cut the wire to speaker. 
2. Cut also jack from cassette 

Now just solder wires from cassete cable and speaker and secure. 

Yous can also remove speaker and put wire inside with small knot to secure connection :)

Now just get things together and test your new Bluetooth cassette in stereo. 

Good luck !