How do you hook the pioneer deh-p8000r with aux for an ipod or something

SOURCE: aux

there is an interconnector to connect this unit to the aux source (CD-RB20/CD-RB10)(sold seperately).
After connecting, press SOURCE until AUX appears in the display.
Press "play" on your ipod.
i sincerely hope this answers your question.

SOURCE: pioneer DEH-P780MP

turn your head unit off, hold the function button and the functions menu to toggle the aux issue will pop up. its like an "off" function setting

SOURCE: THe radio doesn't recognise the AUX connection

While you may read over a million answers to this problem, try this one first:

With the KEY ON, POWER THE UNIT OFF, by pushing the volume button IN for 3 seconds.
After power is off and key is STILL ON, press and hold the volume button AGAIN for 3 FULL SECONDS. The elusive "Initial" settings should reappear at this point. press function to navigate the INITIAL SETTINGS to turn on AUX1 or AUX2, and even to set the clock...

To get out of INITIAL SETTINGS, simply press again for THREE SECONDS, or press "BAND" to "escape"...

I hope this helps.
Scott

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: ipod worked with my pioneer deh-p3700mp before

this works on some other pioneer head units i encountered it may work on yours.
Shut it off and hold the function button until the options appear then you can scroll through and change a bunch of settings including the aux input