Pioneer Deh P250 can u add external CD player or does it have an aux input?

SOURCE: AUX input on Pioneer DEH P31000

There is a plug on the back called an IP-BUS. You should be able to hook the ipod directly up to that with a simple homemade adapter. I built one for mine and it works fine.

http://stereophonik.com/gutterslide/IP-BUS_Hack/

SOURCE: I can't select aux when I plug my ipod into my Pioneer stereo.

I think this can be done with the stereo on but you have to hold down either the e button or 1 of the buttons on the right side of face(not audio)maybe and a menu will pop up and you should run into a screen that ask off on or off you will want it on and then you should be able to access ur ipod by pressing the source button.Hope this helps.

SOURCE: how do i turn aux on my pioneer deh-7600mp radio

Shut it off then hold the function button, cycle through till you find your option to turn it on, the turn the radio back on and use you source button to change to CD, TUNER, and AUX

SOURCE: connect ipod to cd player wit built in aux input.

VERY SIMPLE SOLUTION FOR DEH-P5800MP!!!!!!

Turn unit off by holding the Source (volume knob) button until power is off.

Now, hold down the Function button (FUNC) until the unit turns on. You will now be in the Initial Settings menu, a special menu. Press the Function button (FUNC) again until you see the word AUX, press up to enable it, then press the Source (volume knob) button until you see AUX. It works now, congratulations.

SOURCE: Pioneer DEH-P1Y won't recognise AUX input

turn unit off then push jog wheel for 3 seconds new menu comes up and you will find aux setting set to on and you be all good