Hello All, I have Punto Dynamic manufactured in September 2012 and want to know whats the make of HU. Since the output on stock speaker is not satisfactory, I added Helix E69X - Esprit 2-Way 6"x9" Speaker on parcel tray, this was suggested by Car accessories shop. But, output is still not up to the mark, when checked with accessories shop, he now suggests to add amp to improve the quality of sound. Can someone let me know which amp would be suitable for stock HU and Helix E69X - Esprit 2 speakers? Please suggest.