Re: Saab mic
Posted by
aaronbguerrero on
Dec 01, 2015; 7:45pm
URL: http://bluesaab-forum.90.s1.nabble.com/Saab-mic-tp6p46.html
I'm DEFINITELY not captain hardware :) however, I am an audio engineer by trade and I know a thing or two about mics and amps.
What I can tell you is that at least in the 9-5 the mic runs directly to a harness behind the head unit, no electronics involved. Well, there are a few components inside the mic itself but I'm not sure of their function. (I had an extra saab mic to break into pieces and look at). I just pulled the circuit diagram from the workshop manual and confirmed its directly wired.
Anywho, I've tried wiring the mic directly to the rn52 with poor results.
I'm down to keep working on this with you guys if you want help, it's such an awesome project!
Sent from my iPhone
On Dec 1, 2015, at 10:03 AM, Karlis [via BlueSaab Forum] <
[hidden email]> wrote:
I'm not quite "captain hardware", but I believe the whole thing has to do something with how the original "Telephone" functionality was/is supposed to work. My guess is that the built-in mic goes through some "box" (preamp?) whenever the "Telephone" functionality is enabled - witchcraft happens - and everything works fine with mic-in signal being high enough for a normal sound quality on the other end. I don't believe that SAAB engineers in all their OCD-ishness would have designed such a POS. Unless this was the part that GM guys took care of... :)
Anyway, long story short - I believe it should work fine. Just have to figure out what the "original" mic connection goes through and how it works. Maybe we need to find some old wiring harness for some old "SAAB supported" phone (Nokia, Motorola) on eBay and use that for reverse engineering...
'01 9-5; '95 9000 Aero