It'll feed directly into the antenna line and give much better audio. You'll need the factory car antenna to aftermarket 'standard' antenna jack adapter if the current deck does not already have it. This is an afternoon project to enjoy for a long time, make sure to get "t-tap" snap on spade connectors to tap into the wiring harness for power and install shouldn't be more than 20-30 min depending on how hard to get to back of your radio
If you ever have any tech questions feel free to look me up!
Ninja: these http://www.amazon.com/3M-Scotchlok-Self-Stripping-QuickSlide-Disconnect/dp/B003KOIBLI