2008 Navigation Unit in 2007

[Treehorn]

Hi all, long time lurker, first time poster

I recently purchased a navigation unit (# 8L2T-18K931-BA) from a 08 explorer for my 07 limited to replace the stock audiophile non-nav unit. I used the aforementioned serial number when searching for my unit on ebay, with the understanding that units with that serial number were compatible with my 07.

I noticed there were two versions of this unit, one with some chrome around the volume knob and cd insert/eject buttons, and one without. I thought these were aesthetic differences and bought a unit with chrome .

Come to find out when I was installing the unit this evening, there was a phone hard button on this unit instead of the mute button I'd seen on other units. I was concerned this unit wouldn't work in my 07, but after installing it, everything seemed to work all right, except my auxiliary in (and obviously the phone and voice control functions).

I've been doing some research this evening, and I've read that the models with chrome were actually used for the 1st gen sync explorers (hence the phone hard button). I came across a video of an 08 with sync and lo and behold there was the unit I had purchased. I also noticed the 08 had a more advanced usb/aux combo port where my aux port is in my 07.

Currently the soft button "user device" is displayed on my unit. When I select it I get a "MGM connect error". I'm going off memory, but I could have sworn I saw a photo of a pre-sync nav unit that had a soft button with the caption "line in" instead of "user device".

With all of this being said, does anyone out there think I can get this reprogrammed to work with the aux-in port in my 07?

 

[DjDom]

Your best hope would be go to a dealer. Don't tell them you changed the head unit, just tell them it stopped working. They'll work something out.

 

[Treehorn]

Thanks for the input, I'll see what they can do for me.

 

[DjDom]

Thanks for the input, I'll see what they can do for me.

No problem.
Good luck with the issue!

 

[toronado13]

Did you have luck with the dealer on this? I am doing something similar, I just bought a chrome button unit I am trying to put into my 2007 Explorer and it powers up fine but doesn't work correctly...

 

[toronado13]

Figured I'd also hijack this thread with a few questions about the problems i'm having...

I'm wondering if the problems are b/c of a bad unit, or something that could be caused by needing it to be programmed for my vehicle.

- The stereo hooks in fine and powers up etc, but it takes a good minute or two before the stereo fully functions correctly.

- When I turn the ignition off, the radio goes off right away (doesn't keep playing music until the door opens) and when i turn back on the stereo seems to need to fully initialize as if it was completely cut from power. The unit is then not on the radio station it was playing when I turned it off

- There are no back lights on any of the buttons when I turn the headlights on, perhaps there is a sensor in the unit that the nav would use for changing from night/day mode and that will kick them on, I will check again tonight when it gets dark out.

- The phone button does nothing - I'm assuming that's b/c it doesn't see sync or any other phone interface (I bought a sync T Harness (9R3Z-14D212-A) but I figure one step at a time)