08 accord, stereo

Hey guys my sister just got back from Iraq from doing three years in that sandbox. She bought an 08 accord and wanted me to put a stereo in it for her. She bought a rf 200-2 some memphis coaxils and a w3 in a sealed box, and a memphis 8 gauge  wiring kit. I've never installed on a car this new but I think I can do it had questions about the best place for firewall entry and also front and rear speaker removal and she's keeping her factory radio so she got and line output conveter( converter doesnt have and holes to maybe drill it and mount it in the trunk so any reponses would be great thanks.

if anything you can run a 4 gauge kit for her so if she decides to upgrade the amp to a big beefy one, the 4 gauge will me more than enough. is the car a manual or an auto?

if auto, you can use the grommet left of the brake pedal, thats where the wire for the clutch would go. If its manual, passenger side high up or driver side towards the door. The output converter doesnt need to be mounted. Just get some 14 gauge speaker wire about 2 feet long, tap the wires into the speaker wires in the truck and run it to one side. Wire up the output converter and hide it away.