JVC KD-SX990 CD Player "wiring radio ford explorer 2002" Questions

...radio hi how are you? i am attempting to put a JVC KD-SX990 CD player into my 2002 ford explorer. are the accessory wire is the same as the switch? and the constant wire is the same as the Battery ...

...ford explorer but cant get any audio even thoudg it does turn on. i was told it might be because of the manufacturers amplifier. If the car has a factory amp it would have been powered from the old ...