bose amp? how much RMS does it put out? sounds like a good plan.

except Id drop the 2 6x9's in the back and go a single 8 or 10" and a small seperate amp to power those.

like a JL12w0 or single shiva and a small autotek amp would be nice.

or you could use 2 channels to run the front two speakers and bridge 2 to run a sub and use your HU to power your rears..

just some ideas,
In

EDIT: I ment8" or 10" not 12 or 15!