Question about Metra Kit and Factory Navi
07-14-2010, 07:55 PM
#1
Question about Metra Kit and Factory Navi
Hey Guys, Ive been looking for this answer but I cant seem to find it. How well does the factory navigation function when using the metra kit? Does it still turn down stereo to give voice instructions? Anything else not work as per factory with the navigation?
07-15-2010, 08:21 PM
#2
Well I seem to have found the answer myself. Hopefully this helps someone in the future...
"
The NAV Audio is NOT digital audio as suggested below. In fact, the Nav Audio is about as simple as can be: The Left Front (ONLY!!!) Speaker signal from the Head Unit(non Bose) or Main Amp(Bose) goes INTO an audio input in the Nav Main Unit(with the DVD drive). Then an Audio Out comes out of the Nav Unit and routes to the Left Front speaker. Thats how the Nav unit "cuts off" the signal from the stereo and takes over the LF speaker, and also how it can drive the speaker when the stereo is off :p There is no fancy system for the NAV audio, it is simply in series between the stereo and the LF speaker. In addition, the Nav unit has TWO sets of audio In/Out. One for low power audio (standard) and one for High Power audio (bose). If you look at the wiring diagrams you will see that the standard and bose wire differently to the NAV unit. It is clear that the Nav unit itself is only capable of driving the LF speaker only and that the head unit has nothing to do with that."
"
The NAV Audio is NOT digital audio as suggested below. In fact, the Nav Audio is about as simple as can be: The Left Front (ONLY!!!) Speaker signal from the Head Unit(non Bose) or Main Amp(Bose) goes INTO an audio input in the Nav Main Unit(with the DVD drive). Then an Audio Out comes out of the Nav Unit and routes to the Left Front speaker. Thats how the Nav unit "cuts off" the signal from the stereo and takes over the LF speaker, and also how it can drive the speaker when the stereo is off :p There is no fancy system for the NAV audio, it is simply in series between the stereo and the LF speaker. In addition, the Nav unit has TWO sets of audio In/Out. One for low power audio (standard) and one for High Power audio (bose). If you look at the wiring diagrams you will see that the standard and bose wire differently to the NAV unit. It is clear that the Nav unit itself is only capable of driving the LF speaker only and that the head unit has nothing to do with that."
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