Question about Pioneer DEH-P4700MP CD Player

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How do i turn on sub mode?

I have installed an amp and sub in my car. I know i did it right, my friends have checked it over also. I turn on my radio and crank it an nothing happens with the sub. They said i probably need to turn on the sub option on the head unit. I look on the head unit display and i see an unlit up option that says "sub" so i know its there i just dont know how to turn it on. Please help!!!

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  • Derek9298 May 15, 2008

    Also where do i put the remote wire(blue wire) i dont know where to put it in the back of my head unit. I thought it was supposed to be spliced with the blue wire with the white stripe but the amp dosent turn on ever.

  • golfpro12 Mar 13, 2009

    I am Having the same problem... However, the amp does get power, the sub just is not working, there is an unlit Sub light on the display, anyone know how to get this to work?

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Ok, I was having the same promblem... I just got off the phone with Pioneer, they said that the rear RCAs are always on, there is no sub "option" to turn on or off, the display in this unit is also used in other units that have that feature, so something else is wrong...

Posted on Mar 13, 2009

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For one thing I hope you know you need an amp to even power subs at all.. The remote wire coming off the rca wiring that you hook your subs up with has to go on the prong 3-in on the top here is a rough diagram: the = signs are power and ground and the prongs are thicker the comma is you remote..
- - - - - - - , - =
- - - - - - - - - =

You need a wire coming out of that slot on the wiring harness.. it should be blue. and unless you have a power antenna(comes out when you turn your radio on) then you dont need the blue/blue&white power ant. wire you can just cut it and cap it. if your amp isn't coming on when you turn your ignition to acc then your remote wire isn't properly attached..

Posted on Sep 20, 2008

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