If you OEM amps are still in good working order and you don't plan to swap the speakers, they do make an integration harness for your car. It will plug into the RCA outputs of the new deck and use the OEM amps to drive the speakers. I'd suggest doing that as long as everything in the car works, becuase the sound quality and power output from that deck is going to be pretty weak. The harness is inexpensive and and plugs right into the OEM wiring.