hahah
wah the squeks can be many things guys!
this is my experience with hatchback type of cars, including my Kancil..
-boot assembly. inside, the frame has some 'legs' bent to hold the outer panel. These are secured the panel by means of adhesives. When loose, it squeeks!
open panels, and use hotglue gun / bend the 'leg' away from panel (it's not glued down anyways)
-boot lock/latch mechanism
this you've gotta ask them mudguard shops to adjust for you.
-boot gas shock bracket.
you'll be suprised that this little skinny rod holds up your boot. Your boot usually weights 20-35kg!! this is because of the glass!
The bracket sometimes (mounting point also) tear, and this also produces the squeekings. My friend's Aeroback requires a new reinforcement plate + re-welding of the bracket, and the squeek went away!
good luck in finding your 'mouse'!
it's my turn to find mine, again.. *sigh..*