ShMaCk2004

I am going to be installing a heads up display in my 87 iroc. Just some background info on my car it is LS1 swapped along with a 4th gen dash.
The HUD came out of my dad's 96 grand prix he decided to junk. He called me asking if there was anything I wanted before the junk man came to get it and I was like HELL YES THE HUD, so I drove to his house and went to picking lol.
I grabbed the whole dash, dash pad, HUD unit, controls, wiring, and even the info center.
I'm going to use the dash for the mounting area for the HUD and fit that part into my dash. Just have to figure out where the controls and info center are going to go and look good.
After I dig up some pinouts and wiring diagrams I'll be on to fitting this stuff into my car and post the process here. Anyway here's the pics of what I have.




Edit: Fixed those pesky image links.

cdoyle

subscribing, will be an interesting project to follow

ThirdGenKen

I would love to see how this looks.

ShMaCk2004

Just a small update, felt like doing something quick and easy as a start.
I cut the mounting tray for the HUD unit out of the Grand Prix dash as a start point. Here are some pics just for reference. I'm going to try to make use out of the dash pad if I can.

Cut in the GP dash


The tray out

The dash pad

HUD unit in the dash tray

I know phone pics are not the best ever but its what I got lol.

stealtht/a

iTrader: (1)

Awesome mod, can't wait to see the result.

TPeye

This sounds like an interesting project. My understanding is that the windshields used in cars with heads up displays have a special coating for the display to show up. Have you figured out a way to deal with that?

ShMaCk2004

I've heard that but I've also seen this done in other cars and work just fine. We'll see, my phone reflects just fine.
I could see getting something like this https://www.gps4us.com/GARMIN-HUD-Wi...BS0aAnk98P8HAQ

ShMaCk2004

Well I dug up some wiring info off some w-body sites. Still looking for diagrams/pinout pics but this is a start. Splicing it into my 4th gen wiring looks like it may be kinda easy.

1994-1996 GP and 1995 CS PPM info

94-03 HUD switch
GM P/N #10249411
Pin# Wire color Purpose(connection/source)
(row A)
A PNK fused ignition feed (shares cluster feed)
B GRY interior lamp dim signal (splices into headlight switch output)
C WHT display dimmer switch signal, (goes directly to HUD unit B8 94-96, ? 97-03)
D --- not used
(row B)
E YEL motor up, (direct to HUD unit B1 94-96, ? 97-03)
F BRN HUD switch output, (direct to HUD unit A1 94-96, ? 97-03)
G BLK ground(shares cluster ground)
H BRN motor down, (direct to HUD unit B2 94-96, ? 97-03)

94-96 GP HUD unit
GM P/N case 16196224, lens 16158593A, internals? 16158606
(row 1)
Pin# Wire color Purpose(connection/source)
A1 BRN HUD (Direct from HUD switch F)
A2 GRY/BLK parking lamp input (splices into headlight switch output)
A3 --- not used
A4 DK GRN VSS (links to VSS cluster feed)
A5 TAN oil pressure indicator (spliced into cluster feed)
A6 DK GRN/WHT low fuel(direct to Cluster ?)
A7 LT BLU left turn signal(splices into cluster feed)
A8 BLK ground (splices into cluster feed)
(row 2)
B1 YEL motor up (Direct from HUD switch E)
B2 BRN motor down, (Direct from HUD switch H)
B3 LT BLU english/metric, grounded=metric(feeds from Trip B5 or E/M switch)
B4 BRN charge indicator (splices into cluster feed)
B5 DRK GRN coolant temp (direct feed from cluster)
B6 LT GRN high beam (splices into cluster feed)
B7 DK BLU right turn signal (splices into cluster feed)
B8 WHT HUD dimmer switch input (Direct from HUD switch C)

1994-1996 GP, 1995-1997 CS, 1995-1996 Regal Cluster
Pin# Wire color Purpose(connection/source)
C1 GRN/WHT fuel to HUD (must add!)
C2 --- not used
C3 PNK switched ignition feed
C4 BRN Airbag warning signal
C5 YEL/BLK low coolant level
C6 DK BLU GP=second gear start, Buick=cruise, CS=traction off(not used?)
C7 TAN oil pressure light
C8 BRN/WHT oil level light
C9 GRY backlighting
C10 --- not used
C11 --- not used
C12 YEL fasten seatbelt
C13 DK GRN VSS/speedo
C14 PPL fuel
C15 --- not used
C16 BLK ground

D1 BRN/WHT malfunction indicator?
D2 ORN charge
D3 GRY security
D4 DK BLU right turn
D5 LT GRN high beam
D6 LT BLU left turn
D7 LT GRN low trac
D8 DK GRN coolant temp to HUD (must ADD!)
D9 DK GRN coolant temp
D10 WHT ABS
D11 TAN/WHT brake
D12 WHT tach
D13 --- not used
D14 --- not used
D15 --- not used
D16 BLK ground

1994-1995 GP trip computer - Might be same for 1996 GP, not sure
P/N 16149822 made by Denso in Japan
Pin# Wire color Purpose(connection/source)
A1 ORN hot
A2 BRN switched hot
A3 GRY/BLK park lamp "on" feed
A4 --- not used
A5 BRN/WHT VF dimming signal
A6 DK GRN VSS (splices into VSS cluster feed)
A7 TAN serial data line (splices into DLC M)
A8 BLK ground
B1 --- not used
B2 --- not used
B3 GRY dimming backlighting
B4 LT GRN/BLK air temp sensor
B5 LT BLU E/M switch output (to HUD unit B3)
B6 PPL fuel
B7 YEL air temp sensor
B8 BLK ground

stealtht/a

iTrader: (1)

The display shows up just fine on the glass. The special film some HUD cars use is a polarizing filter so bright sun doesn't wash it out.

ShMaCk2004

Well I think I have enough wiring info to get ball rolling on this. Found these diagrams from some fiero forum it should be similar enough for what I'll be doing. I'll hopefully be starting on it this weekend if I manage to get some time off work. I'll log progress here.

fatalicshock

subed

ShMaCk2004

Messed around with it yesterday. Turns out the HUD unit is entirely too large to simply mount it under my dash pad. I have 2 options: Either extensively cut a hole in my dash to mount it or take apart the HUD unit, remove the mirror box and just use the computer and display parts that are A LOT smaller by themselves. The problem with not using the mirrors is that one of them moves the image up and down and makes the image larger. The display is rather small so I would have to find a way to expand the image or just have it be small. I'm not a big fan of chopping up my dash though. We'll see what I come up with.

Maybe stick something like this above it. http://www.seeitbigger.com/collectio...er-bausch-lomb

I'll have to pull my dash out to see how I'm going to go about mounting it.

ShMaCk2004

So either the HUD controls or the info center are going here.

Doc91b

iTrader: (1)

Interesting project. Pulling up a chair to watch.

stealtht/a

iTrader: (1)

This is why I'm following this. I see lots of interesting interior mid ideas on this forum, but I think until you gave actually taken the dash apart on these cars you can't understand how little space there is. They don't have a glove box for a reason.
Please let us know if you are able to compact thus unit enough.

ShMaCk2004

My dash is currently a 99 Camaro dash, still not a whole lot of room back there.

ShMaCk2004

Well I took the HUD unit apart, I now fully understand how it works as far as the display unit orientation, mirror reflections, and height adjuster motor.
The large mirror has 3 functions: Expand the image, adjust height, and widen field of view (due to being curved). The small mirror simply flips the image to the large mirror. Removing 1 mirror will cause the image to be upside down or backwards. No mirror will cause the image to be 100% static and a bit small.
I'm considering using the adjustment motor directly on the display unit to keep height adjustment (it attaches to the large mirror) and cutting up the case to re-fit the parts used, possibly cutting down and reusing the mirrors. I have a 4th gen firebird dash sitting around that I plan on using for mockup purposes so we'll see what I come up with.
Pic's of the disassembled HUD unit:

The display screen.

Mirror and motor in the case.

Control board.

Motor and mirrors

Dezined

Dude, seriously. Keep us updated. These are the kind of mods I live for. Excited to see what you do.

IROCgiraffe

iTrader: (3)

Great idea! Sub'd as well

TRANSAM82-92

iTrader: (1)

I was going to install one from a 90 Grand Prix Turbo in my 89 GTA convertible, but then I realized I really don't care what speed Im going in that car...always above 55

ShMaCk2004

I'll tell you guys this. It's not as easy as I thought it was going to be. I'm still trying to find time to work on it but I'm so tied up with work these days it's hard to find time, but I'll get there.

punkmaster98

iTrader: (5)

subd

Termn8r

I want this one with rear view mirrors in it :P

Stockcarfan24

Cant wait to see if you pull this off. Last pic is from the mustang in need for speed right?

Jim Berry

I have the similar HUD from an 89 Bonneville SSE. Haven't messed with it yet.

tmork454

iTrader: (1)

Anyone thought of burying a navdy in their dash for a HUD. I'm thinking of doing it down the road.

visitor

It would have been easier to buy an aftermarket HUD and start from there.

padak

iTrader: (10)

^ Wouldn't have been free

seanof30306

iTrader: (4)

Any progress?

WILL85IROC

any status????......

consequence

I took one from an 03 GP I believe, looks the same as the one in the pic.

Given all the other crazy stuff I ended up doing to my car (Keyless entry, S10 Overhead console w/homelink) I had to look into this.

With the third gen dash, there's a 0% chance you get it in without losing something stock. I've determined I could fit the circuit board and plug it into the pigtail through the left side speaker. However you lose the motors and I might be only able to get one mirror to project. A custom rig would need to be made in addition to cutting the speaker cover in the dash pad out.

Other option to retain the HUD functions would be to drop the driver side speaker AND HVAC vent. It would also require removal of a bracket holding the main dash to the car. Would still be stable but it's gonna take some work for a MAYBE, in addition if it doesn't work then the dash was hacked all for not.

Debating if I'm gonna go ahead with it or just get one that mounts on top of the dash.

Wife'sCar

iTrader: (1)

I've been looking onine for one that just sits on the dash and uses gps for the speedo display but have not been to happy with my findings. Either crazy over priced or terrible reviews. The speedo in my car ( my wife's car, hence the screen name) is way off due to a gear swap, and until I do cutom gauges I'm trying to figure out a cheap solution. The decent looking HUD's all require a obd II port to get the speedo reading from, well that aint gonna work for a third gen.

mjdavis68

iTrader: (1)

New Technology allows US to use GPS HUD
http://www.ebay.com/itm/ADD-W1-Heads...ZTfvRr&vxp=mtr

1nastyRS

Subbed