I've seen members did soundproof project
Even roof also add soundproof materials
The outcome is great according to him

Good price rm198 including installations. But this is more suitable to bezza, persona hood and boot got ori soundproof ady. Car roof soundproof are for rainning, u will heard sound "tuk tuk" instead of "tung tung" if got pasted sound damping inside the roof.

IP kit not necessary will improve , only solve some issues on the dashboard. About window u can ask SC to refix the window runner channel.

If you want good sound proof at least door need add sound proof but proton dint add into door.

Yup, or tell them got wind noise around all window.

Ya , do after warranty finish. 4 doors sound proof really improvement alot. I found two place proton dint put sound proof, one is door , one is rooftop. 

Just to share perhaps can add to the first page on Plus and Minus compared to Iriz:

Minus:
1. Iriz has map and cabin lamps, Persona only cabin lamp.
2. Iriz has adjustable rear seat headrests
3. Iriz used to come with 195/55/15 tyres vs Persona's 185/60/15 tyres.
4. Iriz used to come with auto up/down driver window, Persona only auto down.

Plus (what I feel is):
1. Persona has remote boot opening (does Iriz have this? I remember their Premium key is diff)
2. Persona interior is two-toned vs all-black in Iriz
3. Persona Multi-info display is white-on-dark blue vs Iriz's orange-on-black
4. All other Persona plus points as outlined

Just my 2 cents to help those deciding to differentiate the Iriz from Persona besides the additional boot.

The lane signal stick (don't know the term. could be switch)

Instead of fully press down when you want to turn left (Left signal), you just press down a little bit (about half way point), the indicator will start light up on for 5 times (the tak-tak sound only 5 times).

Useful when want to switch lane. No need to fully press down and pull up again when I want to switch between different lanes.

what app is this?
my wife topup rm20 can go about 100km

Day 2... found this problem:

The heater at the rear screen.... few lines on the top and bottom not transmitting heat. Guys, check yours as well ya

Just go SC complaint the wind noise , they will fix for you 

Me too, complaint already, fix macam no fix, and oso the annoying rattling problem as well, fix liao oso same

Lucky for you...
Mine still not solve. Done change the run channel 3 times already, still got the noise.

Also, my front right absorber got some hard knocking sound whenever I run into a bumper...
That one also 3 times too, not solved       

Still not included with my airbag issue... got the warning light keep on bling bling at me after 5 time sending it back to SC   

Apa magic words u gave them?

It's very expensive don't waste money on this, you could buy better and cheaper.
zero5177 If you think this is useful, could put it in first page. 

[Cabin Filter Guide]

First Option : https://forum.lowyat.net/topic/4366911/all (Get from him and tell him u need proton saga blm cabin filter (Tested it fit well for Persona), plus he is my friend)

Second Option : Get it from Proton Part Center or Proton SC( Not Every SC have this stock) .
                        Part Number : PC970005IR [attachmentid=9369740]