I believe irs direct from Honda, as he mentioned the price is more expensive than 3rd party accessories  because he mentioned they give high quality product because want to avoid problems with support with sub standard product. I will check with him again to confirm.

dont waste your $$$, the non original HU price only between rm1k-rm2k. if u lucky enough u can get it for rm900++.

install it outside, do not believe your SA. if there was a original HU from honda with GPS, i am sure it will be in thailand market a few months back.

+1. I am using PS3 on sold my original v-specs rim. Currently using OZ Racing (6.6kg) vs Ori V-Spec from Enkei (~9kg). Pickup feel the same. The only drawback is that 205 tyre potruded out a little from the arch (front only, ~less than 1cm). Arising from that, dirt will hit the side mirror/body especially when pass through wet road. New city does not come with mudguard unlike the older gen.

Besides, PS3 give you better comfort compare to original GY Excellence. I thought 50 series will give bumpy ride compare to 55 but michelin prove me wrong. According to my dad, PS3 rubber is softer so it provides comfort and excellent grip. Tayar also supposingly botak faster 
Stock rim can go up to 195. 6j really limit the choice of tyre. you will need 7jj for 205.

design like this?? The bootlid jutted out



Tomorrow if you boot don't have this gap remember to komplen to SA ok...."farker my bootlid no gap later hot weather expand how???!!  "

Say, will it affect the speedometer if I change tyre to 195/55/R15 from stock 175/65/R15 ? Need to do any adjustment/tuning?

Waja will also roll back if the slope is too steep, I used to own an auto Waja too.

Auto cars use the engine to drag the wheel preventing them from rolling back. But if the slope is very steep the engine power alone will not be enough to hold the car on the slope.

Cars with hill assist like City E and V uses the brakes to hold your car on the slope for a few seconds after you lift you feet off the brakes, and will release the brakes when you press the accelerator. So even on very steep hills the car also won't roll back.

So, yes, unless your auto car has hill assist, otherwise it is normal for it to roll back on slopes.