Nav override

[HUM GOOD]

Originally Posted by rodster

Looks to be the same. From the '05 service manual:

I'd like to do this mod - where is this box actually located?

[s_c5519]

FYI... I just did an '07 H2, the wires are the same as the '05 I did (I was john5519 then) shown above...

The E wire is green and white and there is another green and white wire (I think H) on top of it so make sure you look for the tiny tiny letters (they are there, you won't find them right away) on each side of the plug so you don't snip the wrong one...

[Dwaxman1]

so this is the only way to get this to work?

Has anyone had any luck since??

[Braveheart7]

removed the upper dash ( radio surround)and manged to get my hand behind it and pull out plug, connceted two wires and put the switch on.

drove with it and flicked teh switch and bingo, Nav lit up and allowed me to input address etc, once complete flicked the switch again and normal mode.

At this point no challenges graphics everything work great.

This will save time rather than pulling off the highway to change directions.
thanks everyone.

05 Hummer

[john5519]

Thank you Rodster & Las Vegas, just finished it up and it works great!

Just to let others know, the '05, close enough, but wasn't exactly like the pic shown. There were 4 sets of holes (squares actually) in the front but there were only two rows of wires in the middle, and the "E" was in the exact same place as pictured. They are very small and out on the corners but the A-M lettering is on the plastic shell (actually only 4 letters). There is also another green and white wire above the "E" so make sure you have the correct end up when you cut...

I used the same kind of switch (same location even) as LasVegas, except it does not light up. Radio Shack had a ton of different ones...

Thanks again!

[LasVegas]

Same answer as in the other forum. This is for '03 TNR Nav y/91 Lux amp. Check yours for correct pin.

[epmorgan]

I am new to this forum, if this subject has already been discussed please direct me to the right place.

I have an 05 SUV and I'm looking for a possible override code for the nav unit. My wife has an MDX and the nav unit works all the time. I realize the dangers of driving and useing the nav, but it would be nice if my passenger could use it.

I have done some research, and found some good info on a cadillac forum. Apparently, there is a code that could be used on the 03-04 units that overode the motion detection. By holding down the note button, you get a screen that allows you to enter a code (1791) I think. I have tried this on my 05 and I get a screen pop up, but no way to enter a code.

I have heard that the wiring can be spliced and install a toggle switch to bypass the motion detection, but that seems extreme if there is another way.

I have had a CD and DVD player added and the installer has it set up to use a built in switch to allow the sound from the DVD to play through the truck speakers. By pressing the search button up and then down in the XM1 mode, the sound plays through the speakers. This was a built in feature, but not one that you would know about accidentally.

Just makes me think there is some way to bypass the unit