Originally Posted by altok10sathya
Thank you but cost wise there is no much difference in after market.
On sound quality you will feel the difference between Maruti speakers and others.
For 7k you could add a HU & 1 pair of speaker only. If you could add another 2k you may consider the below spec
HU : Sony DSX-A100U (supports FLAC) or a deckless HU from Pioneer
Front Speaker : 5.25" or 6.5" Co-ax from Pioneer / Sony / JBL
Rear Speaker : 6x9" from Pioneer / Sony, boxed in the boot