AOA. Yesterday I installed a pair of Pioneer D1602 R speakers (Rs 6000 ) in the front door panels of my Honda city 2010 along with a 4 channel amplifier (Boschmann 1200W for 5500). As these are 6.5 Inch speakers so they fit easily in door panel .Total cost of the setup with wiring/ labor was 13000. The sound quality is awsome (I dont like woofers :S). i avoided components as installing D1602r was comparatively hasslefree
One suggestion man.... aviod installing Amplifier as it is very difficult to watch a new car undergoing such an extensive surgery. If u dont install amplifier then fitting new door panel speakers is very simple..
2 options :
1. 4 channel amplifier plus 2 pairs of D1602 R (total cost 19000)
2. 2 pairs of pioneerG1642r (total cost 5000) . I think they will give good result without amplifier.. but do check