I think Skull, rather than give an insightful response to help someone, gets a kick out of attempting to make others feel like idiots (as he undoubtedly thinks everyone else is) by bragging about how smart he is. That he "codes for a living" and drives an MDX. BFD.

 

Yes Skull, we get it, you are soooo important. Since you have all of that responsibility, shouldn't you be working on your project right now instead of continually inflating your head?

 

What do you need the entire unit for? You said you already know how to patch it. Which means you already know the architecture, know if programming is stored in proprietary hardware, etc.

 

As for input while driving... try to pull the E-brake 1 notch...

Usually these system's use this as a signal...

 

Get a grip.

A) My response was to the point and correct.
B) My wife drives the MDX, I just happen to own it. I also own a '00 Volvo S80 T6 and '04 Corvette Coupe. BIG F'ing DEAL. They are just cars. At best they are toys, at worse they can kill.
C) If I wanted to make someone feel small, I wouldn't be messing around here. I got lots of idiots in HVAC I can be doing that with every day. Here I actually try to have intelligent conversations. You don't like my writing style, fine. But don't put words in my mouth because you can't understand me.

 

*SIGH*

I said I could do it. I didn't say I could do it off the top of my head. A computer is a computer, regardless of wether it is a C64 or Cyber 170/865 mainframe. With the unit and and DVD, it is just a matter of time to look up all the needed jump routines to skip the safety checks. You set both jump tables for the IF logic to point the same address and the system responds the way you want. Burn the new DVD and you are done. The issue is time to trap all the places they do safety checks. If they wrote **** poor code and only do it once, I can find it in a few days. If they do it on every major operation, then hopefully they use a subroutine I can patch. If it is custom code done at each location, then it will take a while. That last one is the reason I said one month.

And yes, I would pull the unit apart to find the CPU and bridge chips used. I doubt that they are custom however. No money in it to design a new one. So there are probably tons of docs on the net covering the chip sets.

If you are tying make this a pissing contest, so be it. But I am not.

 

Let me guess, you can't tell the difference between honesty and sarcasm? Hint, that last question was sarcasm. My answer to someone else was honesty. And since I just released the new version of software today, it is sorta fresh on my mind.

So you want to take another shot at me for no reason, or let it go because you misunderstood my intent?

 

That is a damn good idea. Should be interesting to hear the test results.

 

NERDS!

 

There seems to be some agreement on the above. If Scissors is correct that implies that there is a hardware difference between the XLR Nav and the Corvette Nav. If so, the hardware difference might prevent most of what TedG is talking about accomplishing.

Number 1 seems doable. Numbers 2 and 3 would seem to be hardware dependent. Number 4 is somewhere in between.

~john

 

My money is on you!

 

ROTFLMAO (thanks for the laugh)

Now my question is; Was that in regards to patching the code or being in a pissing contest and trying to win?

 

Wrong! Only if the manufacturer can prove the mod was the cause of the failure. Period.

 

I am curious how you can say I am wrong. I stated a civil suit. Which falls under a whole different set of rules than say a man slaughter trial. In the civil court, you don't have to prove the mod itself is the failure point. You would only have to prove distraction by the mod as the failure point to win a case of wrongful death. But since I am not a lawyer, I could be way off base on this line of thought.

 

Both! You Da Man!

 

Oh I understand you. Too well. Run in to too many people like you than I would care to. I just think it's interesting that you specifically mention trying to have intelligent conversations on this forum, yet you're first post on this thread in response to TedG was a bit more than "sarcastic". More like demeaning. On the flipside, sarcasm is something not easily picked up from forum discussion, so maybe you are just being sarcastic. Reeeeaaally sarcastic.

 

[QUOTE=Skull One]Then why did you just try?

A) I already know how to patch the software (I code for a living). I was stating that it could be done and easily. QUOTE]
I write code for a living too
Unless you hve some inside info from gm or delphi
Good luck
Also ive been told that dealers only have the programmers to get into the nav setup!
Try to find one of those puppys on EBAY!

 

Acura does this too. It makes perfect sense to be able to do this - my passenger frequently updates our destination while we are moving, if we decide to go to a different restaurant, or want to find the nearest gas station, etc.

 

I would imagne that almost anything can be hacked. I just depends on weather you want to put that much time/effort into it.

 

I have had several Alpine NAV/DVD systems over the last few years (and TV tuners) but I didn't put one in my last vehicle and likely won't modify the NAV in my C6, although it surely COULD be done. With the early Alpine units they bypassed all of the unit's software and turned it back into a plain 'ol dumb video monitor. They added external RCA inputs to do this. On the more recent video display units, they wired relays to create a sequence of electrical "pulses" that emulate exactly what happens when you do the things you are supposed to do to allow video to appear (car not moving, in park, with the parking brake on) The nav unit uses a VSS (Vehicle Speed Sensor) that tells the unit the speed the vehicle is traveling. Most every late model car has a wire that sends a signal indicating vehicle speed, even non-NAV equipped vehicles. They sometimes use this wire to adjust radio volume to compensate for road noise, for instance. Anyhow, the relays are activated by a momentary switch mounted somewhere within reach of the driver. In my last vehicle I had this switch mounted in the ashtray, as it is less conspicuous there. The switch needs to be pressed every time the vehicle is started before it will override the "disclaimer page".

As I stated before it is unlikely that I will modify my C6 - for the same reasons stated earlier about safety and liability. Sure it's cool to be able to listen to and watch (when stopped) the news on the way to work, but anyone who is involved in an accident with one of these modified video systems is likely gonna be in a lot of trouble if the ambulance chasers find out. Too bad, really because there are people out there who can make smart decisions about when it is safe to look at the screen (like when you are stuck in traffic) and then there are those who can't and that means some guy watching a video while driving could cross over the median stripe and take out a family of six while watching a porno DVD. The only way to attempt to prevent this is to make it illegal for all of us. I find it very hard to believe that ANY auto maker would produce a vehicle that could display movies to the driver while the car is moving, so I can't imagine that the Cadillac XLR will.

If you can figure out a discreet way to bypass the disclaimer on the NAV, let us know. As far as the movies and TV, I think I'll just enjoy the XM radio instead!