I would like to get the installation manual on the DEH-P6900 UB

Unfortunately, this unit does not have a cell phone mute feature, so you will not be able to do it using the deck. You will have to look into an external solution.

Pioneer deh 15 ub does not have intial setup option and my music plays bass and hardly and vocals at a low state.I need it to say rear rear

You may download a copy of the manual here.

hold in the source button for a couple seconds see if that does it

Setting the clock

Use these instructions to set the clock.

1 Use MULTI-CONTROL to select Clock.

2 Push MULTI-CONTROL left or right to

select the segment of the clock display you

wish to set.

Pushing MULTI-CONTROL left or right will select

one segment of the clock display:

Hour-Minute

As you select segments of the clock display

the segment selected will blink.

3 Push MULTI-CONTROL up or down to
put a clock right.

Manual on the link below.

http://a248.e.akamai.net/pix.crutchfield.com/Manuals/130/130DEHP690.PDF

If you are talking amplifier remote turn on, it should be blue/white. Power antenna remote will be blue.

clock setings

connect the white wire to the correct harness wire for your dash lights...then you can use the dmmer on your dash!

your harddrive is prob in ntfs format and needs to be changed to fat. plug it into computer reformat it that should solve your problems