Hello raj,
I think better you go for full unit dvd system which comes with camera option,so that make your car interior special feel.
Recently i got the android DVD system from aliexpress, which comes with panel,got a night vision camera and 8gb navigation card, ofcorse it will be a stress to buy a costly iteam from aliexpress, fortunatly i got my dvd system safely,indian customs charged 4k duty, tottal i spent 24k for get my iteam in my door, used DHL courier, you can get same windows system which are more cheap than android, my advice better go with android so you can download any application from play store,well, sure google map:)android are more faster than windows too, easy to use,etc..
If you are only looking screen(mirror type) with camera,there is lot of products available in market,its cost around 3-5k.
I have a screen without camera,which i used in my honda city, now i got the new android unit so iam planing to sale it.
Your second question regarding about projector lamp, yes its really possible to install projector lamp, 3 inch is better for honda city, you can find xenon projector lamp in aliexpress,around 4k for set, its comes different models,angel light with projector lens.
I am also planing to fix a xenon projector lamp soon,i already had a talk with a guy who doing this work well, he said he can do its for 6k without harm any orginal wire,i seen his somework and really satisfied,
Normally they didnt get any complain,because i knew some people who already installed xenon projector lamp for there cars one year ago.hope this advices will help you to find the right choice.
Hello Pavi,
Mine is 2011 honda city S model,its done 64000 Km, yes ofcorse its not easy to maintain the paint in kerala condition where you get more rain, i do polishing every 6month, i have a friend here who running a painting and service shop, he do the work well everytime when i go there, ofcorse i wash the car atleast one time a week,i use car shampoo for wash montly one time only,better avoid using shampoo or any chemical stuffs often every wash,its slowly make down your car paint.
hello Raj,
Here is some pictures of my android DVD unit, i am still not installed my DVD on my car.