be careful... check the speakers in the box first for compatibility w/ your amp(s). Bose typically uses some funky impedances w/ their set ups...
At least you have the shell to work w/ now. As far as connecting, do a search on rear speaker kit and you will find everything you need to run the wires from the rear, thru the cabin (in passenger side sill or under center console), thru the firewall and into frunk (or where ever your amp is located)