I added reflectix between the headliner and the roof. Here in Arizona it makes a difference with the heat. Your best bet with reducing the noise in the cab is a clutch kit to reduce rpms. I installed the Gillomen Innovations kit and the noise reduction is so good I'm getting rid of my Cardo...
I installed the Gillomen Innovations clutch kit on my ADV 2 Northstar and reduced the rpm 1500-2000 rpm across the board. With added insulation the noise reduction is amazing. I am really happy with this machine now. I had purchased a set of rugged radio headsets which I no longer need. I don't...
I used this boot. Double sided tape to attach and a zip tie around the shifter arm. No heat penetration into the cab.
Qiilu Universal Shifter Boot Car Gear Shift Boot Cover PU Leather Gear Shift Knob Gaiter Boot Dustproof Cover Replacement for Corolla Amazon.com
I did not. The factory kit was just coming out when I got my kit. I just bit the bullet and installed it myself vs transporting it to the dealer, dropping it off, waiting for the install, and then transporting it back home and checking their work.
I installed the Gillomen clutch kit on my ADV 2 Northstar. The difference is night and day. 1000 to 1500 rpm reduction across the board. I first did the sound deadening and that help a little. If I did the clutch kit first I wouldn't need any sound deadening.
I purchased this boot from Amazon and it arrived today. It's going to fit perfect with double sided tape at the bottom. It will cover PRNLH to the right of the shifter but no big deal as it can be read from the dash. It'll be an easy install and should make a big difference in the air coming...
If it's like mine the key locks are difficult to engage. You have to force the key where the first few times you think it is going to break off in the lock. Mine seemed to have loosened up now.