Convert your car stereo into Hands-free mobile phone

Things you need to connect a mobile phone to the car stereo
1) Mobile Phone
2) Male to Male Aux cable with 3.5mm pin at both the ends
3) Car stereo with Auxiliary port

Please refer the video for more details.

3.5mm Aux cable cost your Rs. 35 (ie <$1) and you can fins these from any electronic shops.

The same way you can play radio in Car Stereo from the phone, can connect MP3 player, etc.

Advantage:
Better audibility while travelling.

Disadvantage:
For the conversations, mobile phone has to be used as a mike, thus either need to hold the phone in one hand or attach it to the steering wheel. Still is better than keeping the phone close to ear while driving.

This is a cost effective way to use car stereo as a hands free for mobile phone. Other ways, you need to buy a blue-tooth enabled car stereo and a blue-tooth enabled mobile phone.