How would I go about upgrading the car stereo? Ive seen that I can get a tuner/amp bypass and run the cord to the front and hook that up to my new head unit.
I was thinking I could replace all the speakers, and re-wire it all to the front of the car. What would I do with the amp, the tuner, and antenna in the trunk? Do I need them? How would I connect the antenna to my stereo?

Basically what all do I have to do when upgrading my factory bose system?