watch out for the steering bar running the amp wire that low it normally runs rite into the steering bar so zip tie it to the firewall before running it to the battery.

As far as the deck you need to remove the shifter ring then the strips from the dash to the center console pry outwards after the strips are loose then pull aways from dash the bezel will pop out unplug lighter and look up to the bottom or the deck there are 2 8mm bolts and push the deck out from rear if you try to pull from the front out will prolly snap the vents apart..

Good luck it is kinda a leap of faith and it will scare a newbie when it comes out it sound horrible.