Are you drunk?

 

More than likely you won't be able to use your factory harness. You will have to splice the wires to the aftermarket one. So as far as the radio goes I would go to crutchfield.com and find a radio that you like and then buy it off of amazon. I say to use cruchfield because they don't sell the junkier radios. Also, the reviews on there are made by people who are not a 16 year old on their mom's amazon account... so they are a little more intelligent.