saloon - rear shelf

[Aragorn]

ok i know for the best sound repo u should have the speakers bolted to a nice thick piece of wood or summat

so im planning on getting a set of 6x9's prolly 3 way pioneers

unfortunately the saloons rear deck is 2mm fibre board with 1mm sheet steel underneath

so my first idea was to rip out the 2mm fiber board and replace it with 8mm mdf BUT im still gonna have to cut larger holes in the steel

is this safe? - its not a structural support or anything?

would this be the best way to go about a saloon rear shelf?

[carltoncrazy]

my best advice is not to fit 6x9
you can get special circler cutting tool which acts like a screw n can cut a perfect circle,
so my best advice is to put circler speakers in,
keeps the shelf stenth aswell,
not stuactral but the way