I have a IVA W200 installed with the Blackbird Nav unit. I ordered a PAC Tr7 Universal Trigger to do a bypass for the dvd unit, but discovered I have no idea what I am doing. I have little to no experience with electronics and wiring. I need to know what color wires from the stereo to hook to the trigger and what other color wires I have to hook to the vette wiring and where to connect in. I feel like an idiot asking, but I am completely lost after doing several internet searches and looking over the supplied instructions.

Thanks for what you can provide.

Chris

 

the instructions literally tell u what wire on the pac connects to where (u do not have to program at all) then u pull out ur alpine manual look up the colors for remote, parking break etc and match em up

 

Thanks for the quick reply, but I should have clarified my experience level, which is none. Do I just match up the wires, twist them off, tape em, and put everything back together. Also, what does it mean when it says switched and constant power and where do I tie into those in the Vette. Also, I have read about the vette having grounding problems, so where is a good spot to hook that up?

 

tomorrow ill pull up ur owners manual and get u detailed writeup im just too tired to do it now literally only connecting a few wires its not bad

 

I don't want you to go through all of that. Tell ya what, I will give it a shot tomorrow and PM you if I get myself into trouble. I appreciate your willingness to go through all the effort though.

 

Greg has you on the right track. For switched power just tie into the red power wire (ACC) on the W200 and for the constant tie into the yellow on the W200, same for black with the ground. Then one of the wires from the PAC will tie off to the parking brake, one to the footbrake wire in the W205 harness. The TR-7 comes pre-programmed for Alpine bypass by default, so don't worry about it's programming instructions, you're good to go.

When we say tie off, we just mean strip both wires, twist them together and then tape them off with some black tape. To tie into a wire in-line you can buy "wire taps" from Radio Shack. That will be convenient for the power & ground wires you need to connect to.

Here's a link to a wire tap:

http://www.radioshack.com/product/in...entPage=search

 

EDIT: I fiddled around and I can get the dvd to play with a picture if I remove the universal trigger, but the Nav goes out. If I plug it in, the nav works, but the DVD quits. What am I doing wrong?

Okay, I am in deep doo doo. I pulled apart the stereo, and to my suprise, found a universal trigger. That is about all I recognize in this mess.







I checked the colors of the wires from the schematic on top of the stereo and most of the wires look good, but there are several that have me very confused. The directions make it seem really easy, but it looks like the installer wired it some whacky way. I don't know what is going on here.



I think this is the ground, but it goes two places.




This thing is a total mess. I think I tugged a wire wrong, and now the stereo isn't quite working right. Additionally, there is sound from the DVD, but no picture. I am very confused, and greatly appreciate anything you guys can offer.

Chris

 

take more pics post em and pm me ur phone number

 

Is the blackbird in the head or attached through the dock?
If it is hooked up through the dock, don't wire the dock into the tr7. The tr7 can't supply enough voltage to the head if both are wired and you just need to hook up the head. Wire the dock directly to the power leads. To test, just disconnect the dock and see if the dvd works when you turn the power on. Also, all the menus will not work unless the trigger is working- so, it's not a different problem- it is all related to the trigger not being wired correctly-

also- you have the peripheral ptr7. It may have to be programmed. The older ones came programmed for the alpine. Here is a link to the instructions:
http://www.peripheralelectronics.com?ProductId=269 try programming for alpine. pretty simple.
the pdf link is at the bottom of the page.
I would discoonect the blackbird first. If it dosn't work, try programming. But the blackbird can not be wired into the trigger!

 

Thanks guys, I appreciate the help. I found what I think is the issue at about 1 am this morning, although I think I have to rip the whole thing apart again to fix it. The installer hooked the PTR7 brown wire up to some purple wire he added which I think is connected to one of the brake wires. When the hu is turned on, the trigger fires up, but doesn't do anything. I have to pull apart the brown wire and touch them twice and it works like a charm, except I still lose parts of the menu. I also think he hooked the trigger up to the Blackbird to override the lockout of some of the functions while moving. As stated by Wildwall, I think I am going to have to unhook the Blackbird from the trigger and hook it up normally, though I think I will lose the menu override as the head unit is just a display for the NAV. It is shaping up to be a royal mess.
I had to put the car back together as I have to drive it this afternoon, but I think I am looking at tearing the whole thing apart and doing it myself tonight. I will try to get more pics tonight when I have to tear it apart again. I also need to hit radioshack and grab some of those inline clip things and extra wire to put everything right.
All of this has been quite a learning experience, and I think I am going to do my own install when I upgrade to the Kenwood DNX. No amount of money can make someone care about your car as much as you do. (Backstory: My brother had the install done while I was in Korea, so he didn't know what was supposed to work. The installer obviously didn't check to see if everything was working. Ultimately, my car and my fault, but for the money, you would expect it to work right.)

Chris

 

I've been through this with my IVA W200 and Blackbird dock. You will not loose any Nav menus with the dock hooked up directly to power and the head hooked up to the tr7. You will be prompted to pull over before changing destination settings, but you can just scroll past that screen, and the menus will be acessable. I has similar issues and it all works fully and completely- and perfectly. I did my install May 2007- Just check out one wire at a time and you can do it!

 

Thanks a bunch for the info. I am not looking forward to detangling the wire nightmare, but I think in the end, both the car and my knowledge will benefit. I am going to start tonight and hopefully will have it all back together by Sunday. I am also throwing in a HUD so it should be an event filled weekend. Let the dismantlement begin.

Stay tuned.

Chris

 

Just cut wires that should not be hooked up. It's been a while but the parking brake and foot brake on the tr7 go to the corresponding wires on the alpine IVA W200 and the rest just go to respective power and ground connections. Cut and cap the wires that go to directly to the brakes that are currently connected. Should be a no brainer- well some head scratching may ensue! I think the head hides nav menues because it gets instructions through the nav cable. If your head gets the pulse from the tr7, it tells the nav that it's ok to display all menues.

 

I will post up pics in a minute when I start ripping, but the dockiing station wires are all cut up and hooked into seperate wires from the headunit. Are these the wires that get cut? How does the signal get from the Nav to the headunit if I cut these? Well, I am going to finish this grilled cheese and beer and I am off to the races.


Chris

 

There is a thick cable the connects the two units. It is balck and has proprietary plugs. There sholud be 3 plugs on the dock- power, antenna and the black cable

 

Ya, those all run to the hu, but then they jsut tie in to the wire mess coming out of the back of the hu. On the bright side, the heads up is in and functional.

I am about to start beer four and some serious wire cutting. Wish me luck.

Chris

Battery dead. Night is over. Continued in the morning after I get a jump from the wife.

 

The hu draws a lot of juice. You can't leave it on for more than a few minutes without the motor running or it will drain the battery down below the point it will be able to start the car. Make sure you have the car running when you are testing the head unit.

 

That heads up is awesome, but you are absolutely correct about it killing the battery. It was on for about 5 minutes, and then the dash lights and everything else started to dim and that was all she wrote. The battery was already weak from the doors being open and me digging around, so it didn't take much. I am going to get some coffee in me and I am headed out to the garage for round two.
Last night I did cut the power and ground lines from the PRT7 and ran them to the old lighter lines that I don't use since I have the double din bezel that eliminated the ashtray. I have to get the car jumped to see if that helps.
Chris

 

I have decided to go back to baseline and detach the trigger. I just reattach all of the blackbird wires to the corresponding HeadUnit wires correct? Once I do this I can re-install the trigger and it should all be gravy, right?

Edit: Crap, I think I found a significant issue. The installer did not hook up the head unit to the hand brake or foot brake leads. Could this be the main issue for the trigger? Also the white/blue dimmer wire was hooked to the hand brake out from the head unit. What a collossal screw up. I am going to do a quick search as to where to find the wires for the foot brake. Please chime in if I am headed in the right direction.

Chris

 

wrong direction!
Hook the trigger tr7 foot brake and hand brake to the corresponding wires on the hu! That is the whole point of the trigger- the brake lines are not used. The trigger tricks the hu into thinking the car is parked.That's it! just wire evrything else to the correct power and ground leads.