I cant find a wiring diagram to install my new pioneer AVH-P4000DVD radio. i need a diagram because i cannot use a wiring harness. where could i find a wiring diagram for my factory radio

Just match wire purpose on both diagrams. Wire color may or may not match.

EXAMPLE: Right Front Positive (RF+) and Right Front Negative (RF-) on the harness is purple (RF+) and purple/black (RF-). While on the radio it's white (RF+) and white/grey (RF-).

This seems the setting change in the player set to factory setting and then see if you face the same problem please use this

For Service & Support Please Contact Us At: 1925 E. Dominguez St.
Long Beach, CA 90810
Call (800) 421-1404
Or contact us by e-mail.
Hours of operation:
24 hours a day for most services. Hours for product service, product operation and parts inquires:
Mon. - Fri. 9:00 a.m. - 7:30 p.m. Eastern (all product inquiries).
Sat. - Sun. 11:00 a.m. - 7:30 p.m. Eastern (plasma, DVD rec

I removed my Pioneeer AVH-P4000DVD from my Tacoma pickup to upgrade to an AVH-X2500BT and installed the AVH-P4000DVD in my mustang cobra and found myself suffering from a strange issue (that seems to have happened to a lot of you too). All of a sudden I had lost my audio on my USB and AUX inputs. I tore the net apart for a solution, pouted, drank, and started doing more and more research, and check instruction manuals. I eventually found the solution based of one lone comment someone had mentioned regarding ground and comparing the wiring diagrams for the two decks. I pulled the pioneer harness out of truck and compared it to the pioneer harness in my car and found an inconsistency. This may solve the issue that plagues you as well. Check the harness you are using. I was not able to find a pinout, but the 4 wires on one end of the harness for the AVH-P4000DVD should be +12V battery, +12V ignition, ground, and ground, (yellow, red, black, and black). If you have received the harness for a newer model of pioneer AVH it will still fit fine but one wire is out of place. The second ground wire you need has been replaced by a purple reverse gear sensor for the backup camera. Ground out the purple wire and it should solve your issue... It did for me. Good luck.

i have the manual for it .. i hope this helps -- ther are phone numbers to call Pioneer to get further information

http://www.pioneerelectronics.com/StaticFiles/Manuals/Car/AVH-P4000DVD_OperationManual0123.pdf

Get a relay (4 or 5 pin) from Autozone, O-Reilly, PEP Boys, etc....
Connect wires as follows on relay:
Pin #86 - Amp remote from your radio (blue wire)
Pin #30 and #85 - to a chassis ground (metal dash bracket)
Pin #87 - to Parking brake input wire on your radio (light green)
Pin # 87a - IGNORE. It isn't used in this case.

What this will do is.....
Radio will power on when you turn your key. The amp wire is delayed slightly and will trigger the relay in a second or two. This tricks the radio into thinking your e-brake has been engaged and violla....Mine has worked everyday since I connected it.

Pioneer's website has the install sheet (multi-language) here:
http://www.pioneerelectronics.com/StaticFiles/Manuals/Car/AVH-P4000DVD_InstallationManual0123.pdf

To be working the ipod need to be hook up with the cable cd-1200 (not sold with the avh)and to be plug to the ipod plug on the back of the radio..if you plug the ipod on the usb it wont do..the cable is around 30 $ ..it is the good way to play your ipod ..but if you have a ipod touch 2 generation like i have it wont charge ..if you have any other ipod it will be charging when in use..

ground the wire to a hot (ie power comes to the wire) switch in your dash, like a rear window defroster or seat heater. turn the switch on then off and it will trick the system into thinking you activated the parking brake.

Here is a diagram...

does car have onbord amp