Yes please bro!! Do it. That big screen is just giving the outlook of some taxi. Please change it to the genuine navigation panel being provided by company. It looks superb and decent. Check this picture :
If you want a cheaper one, then you can have some rockmars DVD player like this one, it's my own honda city.
I have got these rims and wheel in my ride. Check them out, they are also good. The tyres are: 195/65 R 15 Nito.
Best of luck bro