1. Open the hood and place it on the support.
2. Pry up the bonnet soundproofing mounting pin...
3. ...and remove the piston.
4. Remove the remaining pistons in the same way.
NOTE: This is how the bonnet sound insulation mounting pins are located.
5. Remove the sound insulation.
6. Replace the broken mounting pins when removing the hood sound insulation with new ones and install it in the reverse order of removal.