Audio Systems: Car Music System Configuaration

Question
Hi am From India My car is 2010 Model Maruthi ALTO K10. i have selected a configuration for my car please have a look at it and let me if its perfect.. i have attached the links of the components..

wanna know about whether the below confi for my car music system is best ??
System -
http://www.snapdeal.com/product/sony-wxgt99bt-ipod-and-usb/1383293?pos=41;78

Dash board Speakers -
http://www.snapdeal.com/product/jbl-cs-4-4-inch/257879?pos=0;11

Rear Speakers -
http://www.snapdeal.com/product/jbl-gto-949-6-inch/257886?pos=5;11

Subwoofers -
http://www.snapdeal.com/product/pioneer-ts-wx304t-30-cm/651242?pos=4;8

Amplifers -
2 channel
http://www.snapdeal.com/product/pioneer-gm-3500t-2channel-bridgeable/651239?pos=

4 channel
http://www.snapdeal.com/product/jvc-ks-ax3104-bridgeable-4channel/606773?pos=7;5

please help me know whether this confi is perfect should i go with 2 channel or 4 channel amp to connect my rear speakers and subwoofer to the amplifier..

Answer
The speakers and amplifier, including the woofer its all a good set up
maybe add a pair of small tweter,
the radio needs to be change, sony don't make good car stereos,
see if you can find a Pioneer Alpine or Kenwood  clarion c in the worse case

Sony its good for TV'S not car stereos

good luck