Nuvi 760 and FM Transmitter

It only shows up if the "Enable FM Transmitter" box is checked. No check mark, no Auto Tune button.

No big deal if they have eliminated the auto tune feature. I could never get it to work on my 760. It just keeps "auto tuning" and never picks a frequency. Listen to your FM stereo, find the quietest freq and set the freq manually. Works for me.

I have it on my 760. It does not work that well.

You can only use the auto-tune feature if you are using the cigarette plug for the 760 which has the FM traffic transmitter built in. Otherwise, it won't work.

No, that's the FM Traffic Receiver (and you never 'tune' that) - the FM Audio transmitter is built into the unit itself

I know that the FM audio transmitter is built into the unit itself. But the auto-tune feature is supposed to tune the built-in fm transmitter to a free station, and it uses the FM traffic receiver to find a free station(it can only find free stations using an FM receiver, not transmitter). At least as far as I understand it. Make sense?

I think Garmin must have changed something in SW Ver 3.00.
I think the one I tried at Cicuit City had Ver 2.xx.

I'll add that I'm not sure if the auto-tune actually does what it's advertised to do...it seems like it just scans every station, either starting at the highest and working its way down, or starting at the lowest and working its way up, and asks you at each one if you hear a strong signal.

I used the auto tune function when playing around with the fm transmitter. It did a scan and then told me to tune my radio to a certain frequency. All it does is to scan the frequencies that it can use for one that has the weakest (or no) signal and tell you to manually tune your radio to that frequency. It worked well enough but I wasn't at all impressed with the quality of the sound it sent.

I've been using the cassette adapter and it works much better. Unfortunately, the freaking cassette player in the car is failing and I have to mess around with the thing to get it to stay in. The cassette player tends to auto-eject anything put into it.

Oh ok - yes that does make sense

I've seen a website that lists the best open freqs for various metropolitan regions. I can't seem to find it now. Anyone remember it?

I just purchased my nuvi 760 last week and when I was driving on Saturday, noticed that it auto-updated the software for the receiver. Anyone else noticed anything?

Is this what you were seeking?
http://www.dlo.com/openfm/openfm_web.tpl

If it's a new unit and the first time you use the traffic/cigarette lighter power adapter, that is what it was...

the weak FM transmitter is my main complaint about the 760. First I thought it was my large SUV with the antenna in a rear side window, but I also have problems with a mid size car with antenna on the rear quarter panel. I got the 760 for a good price, but FM trans was one of the "like to haves" when I was deciding on which unit to get.

I don't know of any good FM transmitter receivers, but I am fortunate enough to have an Ipod connection on my car stereo. Using this, it sounds great!

But on my wife's car (a Prius) the antenna which is on the roof in the rear, screws off. I tried my 760's fm transmitter with the antenna off and it was quite satisfactory, I then tried it with the antenna reattached to the car, not very good, so bad in fact that, I turned it off...

in that same large SUV, I have a ceiling mounted DVD player that sends its audio to my car stereo via FM trans, it works fine.