I too had a chineese dvd player installed in my cow, One thing is that you guys are geting 9' dvd players in 13500? thats damn cheap here you cant get 9.5' in less than 15k ,
Now when i went to get the dvd player what i noticed was that almost all these chineese dvd players are the same weather it is fake pioneer, clarion ,delson,rockmars etc
I spent around 2 hours going from shop to shop taking demos of different brands , touch quality was pretty bad, most had a very lazy response, I liked delson because it didn't have any buttons , but its touch was very bad for example turning volume up and down was a hassle ,
I got an access player its 9.5 , got it for 15k ( you can find lower than this in this range) and 2k for camera installation and fitting 17k total
What I would advise you is that don't go for the name of the Chinese player , their interface is all same , just get the one which has the best touch and the best response, the one i got has 3 times better touch than what i saw on other units and its pretty smooth (in comparison :P)
So use a day like Sunday when you have lots of time on hand and happy hunting