I recently bought a Renegade sport variant which comes with UConnect 3.0 Radio. I am planning to replace it with Kenwood DDX374BT system. I am confused with which harness or adapter I should use. I came across the below two in Crutch field. My question is are they both needed or the first one is enough for me as my current radio doesn't come with any advanced features. Or is there any other better/cheaper adapter. Anyone who already tried the switch, please help in choosing the right harness or adapter.