Hi everyone, I've searched this here and on another forum already. What exactly do i need to do the bypass. I've seen things like the DEI528T, TR-7, and just wiring diagrams. so what exactly do i need because i just got this installed at a local shop yesterday and the guy that installed it said it was grounded to work while i'm driving but it doesn't. it doesn't even play a dvd at all. when i put in the dvd, the audio would work but no video on the display.i'm going back to the shop tomorrow so can anyone help me out. thanks in advance

I just ran the parking brake and the groung wire to a closed circuit switch. That way when I need the bypass all I do is push the switch and im set.

See this post - http://avic411.com/forum/viewtopic.php? ... vhp4000dvd

I did what saleengt2001 suggested and it works perfect!!!

I used this switch

http://www.radioshack.com/product/index.jsp?productId=2062540&cp=&pg=4&searchSort=TRUE&sr=1&y=6&retainProdsInSession=1&origkw=switches&x=13&kw=switches&s=A-StorePrice-RSK&parentPage=search

And it only works if I keep my finger on the button so it's down. The switch doesn't click. Would a cheap toggle type of on/off swtich work?

I'm going to try to just ground the wires(I've read so much online for diff ways) and if that works, I don't need the switch...but if not...would a toggle or a switch that actually clicks work?

The one I have just pushes in and doesn't click into a position.

So if i used http://www.autozone.com/selectedZip,67212/initialAction,accessoryProductDetail/initialR,NONAPP2557/shopping/selectZip.htm

and connected the parking brake wire to the switch, then from switch to a ground...i will be able to watch video while driving?[/url]

both switches should work fine!

Use a toggle switch. I ended up returning the others and buying a nice chrome plated switch and it works perfect.