Does anyone know if the bypass on AVH-P4000DVD is just a simple braking brake ground? It looks the same as the D3 but it only has the one wire in the back so the bypass isn't move the cell mute wire and ground that and the brake wire. So does that mean that I can just simply ground the brake wire?
The bypass is not the same. Try switching the parking brake on-off-on. Has been the same on non-navi decks for years, don't see why they would change it now. You can use a relay or TR7 if you don't want to bother with a switch every time
Cool. Thanks for the help and the very quick reply.
Can you explain this better for me. How do I hooked up a relay or TR7 Thanks
Apparently its a simple toggle switch connected to the green parking brake wire and to a ground wire. See-
Thanks a lot That's what I was looking for. 
so if i don't want a toggle, i can just use a relay in line with taht to trigger it . . . but how do i get the "on, off, on" sensing to it with just a relay ?
i guess i could stop being a tight wod and but one of the bypasses off line . . .
i will prolly pick this unit up in a week or two . . . we get it for 325 at best buy . . .
Customer fullfill a 528t pulse timer relay. Then wire up as follows.
Red - Constant +12v
Black - Ground
Black/white - Accessory +12v
Yellow - Ground
Orange - To parking brake wire of deck
Brown - Unneeded.
Customer fullfill a 528t pulse timer relay. Then wire up as follows.Red - Constant +12v
Black - Ground
Black/white - Accessory +12v
Yellow - Ground
Orange - To parking brake wire of deck
Brown - Unneeded.
sweet . . . so you work at best buy too ? can all the stores get the 528t ?
Customer fullfill a 528t pulse timer relay. Then wire up as follows.Red - Constant +12v
Black - Ground
Black/white - Accessory +12v
Yellow - Ground
Orange - To parking brake wire of deck
Brown - Unneeded.
sweet . . . so you work at best buy too ? can all the stores get the 528t ?
Not for a few years. Yes any store can cf that peice, well they could when I left.
hey do you connect this to the head unit?? and do i use both power and negative wires or just one like make a Positive bypass or Make or negative bypass?? or just you both???
does anyone know if the harness is the same for the Avic-D3 as the AVH-P4000DVD? Thanks
also could someone explain the bypass a little more. I'm really good with electronics and computers I just don't completely understand the car audio lingo.
I want to know if there is a permanent bypass so I dont have to push a button everytime. thanks again.
also could someone explain the bypass a little more. I'm really good with electronics and computers I just don't completely understand the car audio lingo.
I want to know if there is a permanent bypass so I dont have to push a button everytime. thanks again.
just get a 528t pulse timer relay and wire it like this. you'll be fine:
Red : splice with yellow harness wire
Black : splice with black harness wire
Black/white :splice into red wire on harness
Yellow :splice with harness black wire
Orange :splice into light green wire on harness
Brown - unneeded
if you dont want to waste money on a pulse timer you can use a 5 pin relay and just have it triggerd off of the amp turn on wire. and have output to the brake wire.
I have a 2008 avh- p4000dvd player and I tried wiring the dei 528t pulse relay and it just turned the screen off. Sound stayed on the entire time but the screen would go black and then flash back onto the front seat warning. I wired it up as stated in this forum. Any suggestions?
are you sure you dont have the screen set to screen off? or re check your wireing.
it was set to dvd. The movie was playing I could hear the sound and I checked the wiring ten times, it is wired up just like it says here. How do you change the timing on it?
OMG you guys are making this way too difficult. Buy some extra pulse timer bologne? No wai! The unit is looking for the parking brake to be on, then off, then on again. So you need a signal you can control. I believe the AVH-P4000DVD has a USB cable that you can use to play music from a player or flash drive. And doesn't that cable have a small electrical signal associated with it? Try taking that "parking brake" wire and sticking it into the USB extension cable. Guess what? The unit now sees a signal (it doesn't know or care what it is) and will allow the screen to play. No extra parts, no buying stuff, and no complications. I just left the parking brake wire stuffed into a compartment out of sight, and when I wanna watch the dvd for whatever reason, I just stick it into the USB cable. Simple as that.
Don't nuke it.
For the avhp4000 and the avhp5000 all you need to bypass the unit is a regular 5 pin relay. Use the amp turn on (blue/white stripe) to trigger the relay and output a ground onto the parking brake wire (pink). There is enough of a delay on the amp turn on to let this work. I have done it several times. Every now and then you have to turn the unit off and back on for it to work but its completely automatic.
Thanks for that insight
Pioneer video lockout override bypass hack "HOW TO" instructions:
1) Connect one toggle switch wire to the green brake wire from your head unit instead of connecting it to the parking brake switch in your vehicle.
2) Connect the other toggle switch wire to vehicle ground (something metal) in your vehicle.
3) Start your vehicle, turn on radio, relax.
4) To bypass flip the toggle switch back and forth twice slowly.
5) This is a manual operation that you will have to do every time you start your vehicle.
i found this on ebay
5 pin relay works best, installed this few weeks ago, and no need to install the toggle switch or press anything extra to turn on the video..
just follow the diagram that guy posted and ur gold...really easy...went to thesource.ca/radioshack and bought the relay for 10 bucks
Will the relay method work with a 4 pin relay?
I found this on Amazon, and it only mentions 30, 85, 86, and 87, no 87A.
1. connect "30" to the parking brake wire from the headunit2. connect both "86" and "87" to ground
3. connect "85" to the remote turn-on wire from the headunit
Thanks, and sorry if this is a noob question that's been covered before! 
Will the relay method work with a 4 pin relay?
I found this on Amazon, and it only mentions 30, 85, 86, and 87, no 87A.
1. connect "30" to the parking brake wire from the headunit2. connect both "86" and "87" to ground
3. connect "85" to the remote turn-on wire from the headunit
Thanks, and sorry if this is a noob question that's been covered before!
Did this last night in my Tahoe, it works like a charm, and only cost $5.
$4 for the relay, $1 for 4 spade connectors and 3 crimp on connectors. No pushing buttons everytime!