I Know it sounds difficult but running the wires to the back is very easy.
Just run the wires and cut off the old wire that you dont use and tape it off or whatever. Just use the new wires from the harness and you will get full power to your speakers, if your not running subs this is especially important, b/c you wont get the bass response or highs your looking for.

As far as the fronts go, im still waiting to do mine, but they dont seem nearly as hard as others make it sound.

Oh and another quick fix, take it to a car audio place, buy new speakers and tell them to fix it for you when they install them (find someone with free installation) and you should be straight.

Any more Q'* just post them[/quote]