Amardeep

I have read a few threads where people have been thinking about modifying their VGA outputs to connect their car PCs to the RGB (navigation) input of certain Alpine multimedia headunits (I beleive the IVA-D900, IVA-D300, IVA-D310 and possibly others have 800x480 native resolutions). The problem seems to have been that nobody had a pinout diagram for the Alpine navigation unit.

I contacted Alpine and told them that this is also what I wished to do, and they sent me this diagram (attached) showing the pin configuration of the NVE-N077P navigation unit.

Knowing little about this stuff, I have decided to put this diagram on the forum for you people to see. Hopefully somebody will work out what needs to be done to get the Alpine multimedia stations showing the VGA signal from their car PC and share it with us all.

I was also just wondering about a couple of other issues - the sound from the navigation unit also comes through the RGB connector - does anybody know of a suitable way of outputting digital audio from a car PC to the speakers while the multimedia station is in Navi mode? - Is this possible using the PXA-H701 digital audio manager or the MRA-D550 5-channel amplifier?

Amar - London, UK

MP3Car.com

 

TheGemInIMan

Excellent ... thanks Amar ... thats exactly what I'm trying to do for Shawn on this thread:
http://www.mp3car.com/vbulletin/gene...rca-cable.html

cheers,
Gem

A4ringedONE8T

Hopefully I can get all this to work as long as you guys can hold my hand through wiring. I can rip apart a motor, build turbo kits, install clutches, brakes, suspension, .... but wiring is not one of my strong points!

Im hoping the Alpine NAV cable will take computer sound and put it through the car when on Nav mode as well. Still gotta get to that after I get the video taken care of.

Since we are here in the Display section, anyone know if theres anyway to get the Alpine touchscreen to work for the computer?

If we get visual and sound through the Alpine unit, why not go for touchscreen too!

Amardeep

No problem guys, it would be cool to see if anyone can actually use the diagram to get Alpine screens displaying a CarPC VGA picture. Touchscreen would be really cool, but I have a feeling it would be nearly impossible to do.

One other thing I was concerned about was that I'm pretty sure the Nav audio input is mono.

RipplingHurst

I'm planning on hacking my stock RGBs nav screen to accept my computer's VGA screen (not composite, as this would be easy, but VGA quality material). Take a look at this thread I started.

From what I understand, you could use this Australian VGA to CGA/RGBs converter in the following way:

Computer VGA out -> VGA to CGA converter -> Alpine unit

VGA cable CGA out


The CGA out is already splitted, so you would this soldering:

Converter / Alpine unit:

pin 1 -> Pin 8 (red)
pin 2 -> Pin 13 (green)
pin 3 -> pin 9 (blue)
pin 5 -> pin 12 (sync)

Pin 4 and 6 -> pin 2 (video ground)


I think this will work. I'd definetely put the computer sound as an AUX source on the Alpine, if you want stereo. But then I'm not sure about how you can hear the nav instruction thorough your speakers, when you're hearing music from the computer though. You'd need a dedicated amp/small speaker somewhere for the nav part, or you could use some kind of a mixer. Or maybe the NAV part on the Alpine is always on, so it would mute the aux input source (the computer) to play the NAV instructions?


Hope this helps.

R.Hurst.

audiomodif

Yes, im giovanni from indonesia.
i already read a lot of article about car PC.
i have iva-d300 installed at my car, and i want to build car PC.
the first problem is how to connect VGA output to my iva-d300 and i have solved my problem with read this article. but if we must convert from vga into cga ----alpine navigasi.....it's too many thing that we must do. i guess, the simpley way, why don't we use motherboard with RGB output? i have asrock motherboard type 775 HDTV with RGB output. can it work directly into IVA D-300 at navigasi input?
my second problem is i saw that navigation input only have mono input for audio. but i want it at stereo. how? is that any trick for that?
thank you

audiomodif

How can we get ( BUY ) alpine navigation cable ?
what is the type ?
can we buy the plug only?

audiomodif

if we uses alpine IVA d-300, which one me must choose for converter RGB to VGA, with TTL sircuit or non TTL?
thank you

MP3Car.com