1) no. the wire harness for it comes with the bazooka, so there is no existing power line.
2) my ground for my amp is in the spare tire well, under the foam inserts, drilled in to ground to the chassis.
3) there is a rubber grommet through the firewall on the passenger side. with a little work, my 4 gauge power wire fit nicely. then run it under the panels under the dash, under the inner door sill, to where you are sticking your amp.
5) the stock deck has no remote wire run yet. if and when you install the stock deck, run your remote wire under the dash and along the same path as the power wire. worked perfect for me.
2) my ground for my amp is in the spare tire well, under the foam inserts, drilled in to ground to the chassis.
3) there is a rubber grommet through the firewall on the passenger side. with a little work, my 4 gauge power wire fit nicely. then run it under the panels under the dash, under the inner door sill, to where you are sticking your amp.
5) the stock deck has no remote wire run yet. if and when you install the stock deck, run your remote wire under the dash and along the same path as the power wire. worked perfect for me.