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View Full Version : Anyone using the kenwood remote for their Nav?


XiiiXiii
05-22-2007, 10:26 PM
After studying the nav systems diagrams for hours I finally had an idea to disable the Accept screen.

Can anyone confirm that you can accept that menu with the remote control? If that does work then why not simulate that signal to the nav system. It would be a simple plug and play circuit board that simulates whatever you have to push on the remote to accept the warning screen. I'm hoping my asumption is true so that I can make a board to do this. I don't want to buy a remote to test only to find out it can't do it.

If someone does have the remote can they tell me if it works. And if it works would someone be willing to let me borrow it so I can do some testing with it.

Worst case scenario, my asumption is wrong. Then I'll have to go back to my backup plan, which is to simulate a touch screen push by sending touchscreen data into the Nav control unit. I've found those lines on the schematics but its a lot more work to simulate that then it is to simulate a remote control.

And a backup to that scenario is to reverse engineer whats on the Flash room on the Nav, which I found on the schematics. But programing those is beyond my knowledge at this point, but its never too late to learn.

XiiiXiii
05-23-2007, 08:00 PM
Well I guess I don't need anyone with a remote to test it for me (if anyone had a remote). I did some testing today and started reversing the circuit diagrams again at work (killed another 5 hours).

After unplugging the circular cable from the dvd unit to the screen I found out that A) the Accept message still appears and B) all the suby screens are still there (Info and calander). This leads me to believe that the accept message is on the video unit, not the dvd-nav unit. So even if you had a remote it wouldn't matter because it's the screen's microcontroller looking for you to push accept. Remote control only stimulates signals to the Nav system itself.

Looks like I'm going to have to reverse engineer the touch panel to simulate pushing the accept button on startup.

One new discovery is that the because the suby nav screen is based off the DDX7015 it should be able to work with the newer Garmin based Kenwood nav system (which is harddrive based). One thing I learned from the circuit diagrams is that the circular cable is only used for Video of the nav, Audio of the guidance, and data of the touch screen.

If I'm lucky the KNAG510 nav system isn't as strict about inputing destinations while moving. I couldn't find many reviews online of people using it. Either way its a better nav system based on Garmin's software not Denso's software. And considering that the only car signals the G510 takes is the parking brake (doesn't use speed sensor at all). Its quite possible that the good old trick of shorting the parking sensor out to trick it to let me input while driving will be nice.

Updates to follow once I order one of those G510.

phoenix96
05-24-2007, 04:01 AM
The KNAG510 looks like it could make a very nice replacement for the OEM system, if it would indeed be interchangeable.