if u go on talk audio forum they will help you out in teaching you how to make your own door pods, i however could not be bothered and bought a set off someone on ebay. You wont fit 16cms behind originals and itll look a bit cheap with plastic. you can buy some audioscape (i think) ones but they are £180!! if i were u id try n go down the make ure own route, if you're handy. On the subjects of speakers i can highly recommend the jl xr650csi component set as ive just installed some