There are two ways in which you can find out about the date of manufacturing of the car. The first is to check the registration certificate. The other is by checking the code near the gate of the driver's cabin, known as VIN Code.
There are many options available for a 2 DIN music system for Hyundai EON in the market. You can check with a local car accessory shop to know about the options in detail. Also, you can check out some options on our online shopping portal. Please find a link below to check out the music systems http://shop.cardekho.com/car-accessories/music-systems.html