hello everyone. i just bought a 2005 gs300 about two weeks ago and have some questions. my previous car was a IS300 and i had a pretty nice system in it. i want to keep the inside stock. i am going to add a 13w7 in the trunk facing through the existing subwoofer hole powered by a jl audio 1000/1 amp. i know its going to produce some hard hitting clean bass. the question i have is will the stock inside speaker be capable of keeping up. or would it be a good idea to upgrade the stock speakers to something better. and if i upgrade the stock speakers will i be able to keep the stock amp running the new speaker. lastly are the speakers in the door easily replacable like in the IS300. the IS300 has simple 6 1/2 front and 6x9's rears. or is there some mroe custom work that needs to be done.

i want to change as little as possible. i will do whatever it takes to get some nice sound. money really isnt the problem. the thing i dont want to do that i did with my IS is start pulling the car apart again.

thanks for all your help
dennis