soundcheck Posted March 29, 2008 Report Share Posted March 29, 2008 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? Quote Link to post Share on other sites
whtcrxghst Posted March 29, 2008 Report Share Posted March 29, 2008 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 Quote Link to post Share on other sites
soundcheck Posted March 29, 2008 Author Report Share Posted March 29, 2008 Cool. Thanks for the help and the very quick reply. Quote Link to post Share on other sites
wldblueyes4you Posted March 30, 2008 Report Share Posted March 30, 2008 Can you explain this better for me. How do I hooked up a relay or TR7 Thanks Quote Link to post Share on other sites
Hotspur Posted April 3, 2008 Report Share Posted April 3, 2008 Apparently its a simple toggle switch connected to the green parking brake wire and to a ground wire. See- http://f150online.com/forums/showthread.php?p=3140440 Quote Link to post Share on other sites
wldblueyes4you Posted April 4, 2008 Report Share Posted April 4, 2008 Thanks a lot That's what I was looking for. Quote Link to post Share on other sites
95tojo Posted April 16, 2008 Report Share Posted April 16, 2008 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 . . . Quote Link to post Share on other sites
cntrylvr79 Posted April 16, 2008 Report Share Posted April 16, 2008 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. Quote Link to post Share on other sites
95tojo Posted April 16, 2008 Report Share Posted April 16, 2008 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 ? Quote Link to post Share on other sites
cntrylvr79 Posted April 16, 2008 Report Share Posted April 16, 2008 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. Quote Link to post Share on other sites
tlmatiko Posted June 23, 2008 Report Share Posted June 23, 2008 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??? Quote Link to post Share on other sites
mbyrne26 Posted June 26, 2008 Report Share Posted June 26, 2008 does anyone know if the harness is the same for the Avic-D3 as the AVH-P4000DVD? Thanks Quote Link to post Share on other sites
mbyrne26 Posted June 26, 2008 Report Share Posted June 26, 2008 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. Quote Link to post Share on other sites
CatchMeIfYouCan631 Posted June 26, 2008 Report Share Posted June 26, 2008 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 Quote Link to post Share on other sites
whitecivic Posted June 30, 2008 Report Share Posted June 30, 2008 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. Quote Link to post Share on other sites
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