Hands free calling and FM transmitter

its not designd to do that

Old post, but here we go.

1: Update to latest firmware from tomtom, for Gox20/x30 that is 8.351
2: Make an silent mp3 file and put that onto device
3: Play silent mp3 in loop
4: Send nav instructions over fm to radio... et voila!

Hi

Tom Tom have removed the facility, as detailed below:

We understand that you are concerned about the recent change to the TomTom application which has disabled FM Transmission of navigation instructions. We deeply regret that it has become necessary for us to implement this change, as our FM Transmission technology was a unique innovation at the time of its release.
Unfortunately, due to recent legislation, it is no longer allowed to occupy an unused FM frequency unless audio transmission is constant. Because the signal that carries your TomTom's voice instructions is not constant (voice instructions are only given occasionally, as needed) it has now become illegal to transmit this kind of audio via FM radio transmission.
We regret that this feature can no longer be offered under the current legal restriction.

Yep - bad news, it won't do that. I bought my TomTom 930T this summer and was very disappointed when it didn't do that.


Now the unit can no longer transmit the instructions over FM either as "it infridges uk radio laws"

you need a mp3 with no sound on it and it shound work so i was told