It is recommended that the paint or touch paint on Eon should only be done from Hyundai's authorised service station. They have well equipped machines and will produce the same existing color which is a difficult task.
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