iPhone & my TomTom cradle

[SimoninEaston]

Hi Folks, I bet you can help me with this teaser!
I have an iPhone 4S and I really like the turn-by-turn directions feature that comes with the Maps app. I also have a TomTom hands-free iPhone cradle, which connects to the phone using BlueTooth.
I can't get the turn-by-turn voice instructions to come out of the cradle speaker, only the phone speaker, which is not loud enough.
The phone app works just fine hands-free - I hear the sound clearly from the cradle speaker, which suggests the problem isn't to do with BT or the cradle. All the other apps that have an audio component (e.g. Music) don't come out of the cradle speaker, either... for example if I try to play any music I don't hear anything, not even from the iPhone speaker...
Can anyone give me any advice?

[mcqueen]

If you're using iOS 7 then you should be able to choose where the sound is sent to from the Control Centre. This is accessed by swiping up from the bottom of the screen.

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