YouTube - Official Homer Simpson Celebrity GPS VoiceSkin on TomTom Demo
I would say thanks to vlad05pun (for cracking this)
I've tried the voices on my Tomtom UK & Ireland v1.7 and it works. vlad05pun, tried it as well and it works.
Ensure you have ifile (any version will do from cydia) installed, as this is required.
Once you have downloaded any of the files below, follow the instructions included and you should be fine!
All Voices:
Megaupload
Fileserve
Filesonic
Depositfiles
Instructions:
1) Copy "premium_voices.rar" to the following directy (SSH, iPhone Explorer, whatever you like):
User/Applications/TomTom.app(should be a folder of letters and numbers)/US-Canada.app(or whichever version you have)
2) Using iFile, unarchieve the "premium_voices.rar", once completed, double-check "premium_voices" folder to see if files are there.
3) Using iFile, Copy "premium_voices" folder, once copied go to the following folder:
User/Applications/TomTom.app(should be a folder of letters and numbers)/Documents
4) In this folder you shall see another folder with the same name called "premium_voices", go ahead and paste over this folder (Overwrite All)
5) Once this is done, make sure to close the TomTom App, if its already open in the multi-tasking bar. Launch TomTom, go to:
Change Settings/Voice/Celebrity Voices
6) In here you can choose the new voices, select one and make sure it plays back a preview. If it does you have done it correctly
7) If it DOES NOT, playback a preview of the new voice, go back to ifile and redo steps 3 and 4. Then go back into the TomTom app and retry the voice sample, you may have to uncheck and select another voice and then recheck the celebrity voice to get it to playback.
***Worse Case***
8) If it does not work at step 7, delete all files within the folders you changed or simply uninstall the TomTom app and then reinstall. After this start the whole process over again.