A:AnswerYou would need to buy a separate harness for steering wheel controls aside from the one you need to plug into your vehicle’s factory radio harness.
A:Answermake sure your speakers are good My front 2 are bad and i had it professinally installed and they warned me i would only have partial sound til i replaced my speakers. Aside from that it works great and i had that issue on my old system. I lost radio and aux on my old one.
A:AnswerI bought this to replace the Pioneer stereo in my 2004 Ranger and it hooked right up to that harness no problem. My old Pioneer was from approx. 2007.