Moderator: volvite
I have a different Garmin in my other car (just bought the 750 for the Path) and can vouch that the bluetooth in Garmins don't seem to work too well.MARKSPATH wrote:FYI, I've got the 760 with Bluetooth in the Nissan housing. People couldn't hear me, even with all the windows closed and sitting still in traffic. I bought the Garmin external mic -- total waste of money. The wire is plenty long, easily routed through the dash, up the driver A-pillar, across the headliner and clipped it to the side of the sunglass housing. Unfortunately, there must be no shielding, and the long wire acted as an antenna, picking up and amplifying every bit of electronic interference imaginable from the electronics and ignition system. The whine was so bad the first time I tried it out that my test subject (my daughter) and I nearly went deaf from the noise, and you could barely hear each others' voice over the whine.bbermann wrote:Are you using the Bluetooth capability for your cell phone? If so, how is that working for you and did you have to do any additional work (ie.: adding a separate microphone?).
What's needed hear is either a well-shielded cable or differential signal across twisted pair to negate the interference. When I get the time I'll look into trying to build something with shielded cable, but I already have enough electronics projects to not want to tackle designing a differential audio system anytime soon.
Save your money and do what I did: buy a $25 Plantronics bluetooth headset from Costco, and just disable the GPS bluetooth function.