Okay so I recently went from a civic hybrid to a prelude. Definitely love the prelude more. Anywho, I have a pioneer FH-S52bt deck thats hooked up to a 2500 watt amp with a 12 in subwoofer.i might throw in a second sub.( current sub is pioneer). The blue and white wire out of the harness that goes in to the aftermarket stereo. What does it need to be connected to. Thanks in advance for any and all advice