we can't recommend speakers when we don't know the vehicle.What year/make/model vehicle?
sound effects? home theater has discrete channels for center, mains, surrounds. car audio (basic HU) has stereo information only. no, the "effect" of home theater processing is not in your plans. Can you buy processors, amps, speakers for 5.1 in a car? yes.Do we get good sound effects with 10k budget... Basically am looking only for speakers and no intention of buying any amps. Basically I wish to have effect same as that of home theater system provides. So what would be the best combination and it should not be very costly [ budget can be stretched a bit]... The HU I have is Alphine CDA-9886 ( purchased long back but never used ).