I pick up my new release series 4.0 tomorrow and I will be installing my Alpine IVA-D310 right away. My question is for you peeps that have "brain" based dvd players. Where is the best place that you've found to mount the brain and run the wiring from? Since this will be my first Scion, are there any tricks to romoving the factory hu or popping sills or anything? Thanks in advance.