Thanks for your opinion..Currently i am using 205/45R17..high fuel comsupmtion. I in the midst of changing it back to stock rims size either 14" or 15" reason is because I am going to travel at 60km per day next month onwards.  

so what you think the Vios 2007 G spec rims? what size of tyre that the rim can fix? 185/60R15 or 195/55R15?

any tyre brands recommend for profile 195/60 R15 ?

Finally managed to install the Toyota Double DIN player from Pioneer.
Installing it was PITA especially unscrewing the bracket holder from the old player.
Sound quality and bass definitely better than the stock player.

The stock speaker for G spec is already good enough to produce the bass and treble.

Streaming BT Audio from my N4 using Google Play Music and equalizer setting turn ON in phone can produce richer deeper bass..   

The rattling sound at the dashboard is also gone after I install this player. 

less than RM300 per tyre..

100% no more sound. I go through same road same bump same speed , confirm no more sound.

U also face this prob? ur car spec?

mine all prob solved. now only find solution when i take full turn left when reverse in morning and turn back normal then got "krak" sound... afterwards no more liao. only happen one time every morning / or when car cools down.

Just want to ask, for vios what is the recommended service interval? for each type of engine oil interval (mineral, semi and fully)?

preferably for the new vios...wanna roughly see the service budget per year...

my budget estimation also around RM100~RM150 monthly...

for fully and semi-syn the interval is 10,000km? mineral is around 5000km? please correct if I'm wrong...

I'm in Toyota service center now.. waiting to be checked... haha

can i know what is his problem?