I went with the below and IMO my system sounds great. I used the subaruaudio.net speaker adapters to mount these in the dash and doors. I would look into using an amplifier, I have a Soundstream RUB4.500 powering these, 4 x 75w @ 4 ohm:
Dayton Reference Series RS180 7" in doors
Dayton Reference Series RS75 3" in dash