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Pioneer AVH-P4000DVD Bypass


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#1 soundcheck

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Posted 29 March 2008 - 07:31 PM

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?

#2 whtcrxghst

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Posted 29 March 2008 - 07:33 PM

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

#3 soundcheck

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Posted 29 March 2008 - 07:39 PM

Cool. Thanks for the help and the very quick reply.

#4 wldblueyes4you

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Posted 30 March 2008 - 01:30 AM

Can you explain this better for me. How do I hooked up a relay or TR7 Thanks

#5 Hotspur

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Posted 03 April 2008 - 03:00 PM

Apparently its a simple toggle switch connected to the green parking brake wire and to a ground wire. See-

http://f150online.co...d.php?p=3140440

#6 wldblueyes4you

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Posted 04 April 2008 - 03:02 AM

Thanks a lot That's what I was looking for. :D

#7 95tojo

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Posted 16 April 2008 - 05:57 AM

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 . . .

#8 cntrylvr79

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Posted 16 April 2008 - 11:21 PM

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.
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#9 95tojo

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Posted 16 April 2008 - 11:24 PM

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 ?

#10 cntrylvr79

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Posted 16 April 2008 - 11:32 PM

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.
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#11 tlmatiko

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Posted 23 June 2008 - 09:44 PM

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???

#12 mbyrne26

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Posted 26 June 2008 - 02:16 PM

does anyone know if the harness is the same for the Avic-D3 as the AVH-P4000DVD? Thanks

#13 mbyrne26

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Posted 26 June 2008 - 02:30 PM

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.

#14 CatchMeIfYouCan631

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Posted 26 June 2008 - 02:51 PM

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
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#15 whitecivic

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Posted 30 June 2008 - 11:04 AM

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.




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