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#1
02-04-2004, 02:41 AM
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OEM Navigation system installation hel[
I have installed a oem navigation system out of an 03' Expedition into my 02' E-350, along with the nav unit I have installed a DVD player and ricp out of an 04' Navigator. Everything works as it should except for the nav unit. My problem I believe is in the one wire that feeds the vehicle speed info into the unit. I am unsure where this should be tapped into, I have tried the the LF wheel speed sensor, the rear end speed sensor, and the trans speed sensor, all to no avail. I even tried a abs module out of a navigator, bootlegged it up with as few wires possible, and still, the nav unit does not show me moving. Any suggestions would be greatly appreciated!!! Thanks...
Last edited by gunkel04; 02-04-2004 at 12:08 PM. 
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#2
07-07-2004, 01:41 PM
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Re: OEM Navigation system installation hel[
gunkel,
Did you get this to work? I am trying to do a nearly identical project. I am going from an '03 Expedition to an '04. Can you tell me what you did to make your's work? I just bought the head unit and would really like to know what it takes to do this mod, as I have time to back out of the deal. Thanks...
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#3
07-17-2004, 12:55 PM
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Re: OEM Navigation system installation hel[
There should be a VSS (Vehicle Speed Sensor) lead that goes into the EEC.
That's where you're supposed to tap the Speed pulse wire. Tapping it on the wheel speed sensor won't work. I don't know what the lead number that is, but it should be easy enough to find in publications like Helms.
__________________
 Anything Worth Shooting, is Worth Shooting Twice Ammo is Cheap. Life is Expensive.
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#4
02-16-2005, 12:39 AM
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I too would like to know how you wired the Nav unit.
I have an '03 Expy and I got the Nav unit off of e-bay and I have yet to figure out how to wire it in. I need the pin out of the unit and the plugs to go into the unit. I added the OEM DVD unit allready, my expy didn't come with it, I got it off of e-bay $150.00 and did a lot of research to figure out how to wire it in but I did it and the kids love. Now if I can get a little help with the Nav unit my life will be complete.  I think the wire you are looking for is the VSS (vehicle speed sensor) wire. I have seen this on some post about this "I THINK" it is a grey wire with black stripe. But don't quote me on that. Tim
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