All you are going to need is the metra kit. You won't have to cut any wires. It's really easy. I HATE cutting wires and avoid doing it at any cost, but I was able to install that without any problems at all. The only downside is you have to run the wires that come with it from the rear of the car all the way to the front head unit.
As for improvement..... I had no intention on replacing my stock headunit, but I got a metra kit on eBay for $10 and had an alpine head unit laying around, so I figured WTF, why not? I just wish I did it when I first got the car. You will notice a tremedous jump in sound quality.
As for improvement..... I had no intention on replacing my stock headunit, but I got a metra kit on eBay for $10 and had an alpine head unit laying around, so I figured WTF, why not? I just wish I did it when I first got the car. You will notice a tremedous jump in sound quality.