Kwik8276

HEy everyone , I was meaning for a while now to take out the stock subwoofer but had no time until now , I wanna take it out just the fact that I have 2 12's jl w3 in the back , it's rattling now so I wanna take it out and maybe get more airflow for my other two subs . Does anyone here have a DIY guide on how to take it out ? I got as far as taking the bottom backseat off and just had to fold down the seats but I can't get that panel off to get to the woofer ;-( any help would be appreciated !!;-)