Disallow sound through 30-pin-connector?

[BlackWolf]

hi,
I was wondering if there is a way (file mod / cydia app / whatever) that forbids sound playing through the dock-connector and instead plays the sounds through the speakers.
I'm asking because, when I put my iphone into the dock, it always plays sounds through the dock connector, but I would rather hear them through the iphone speakers.

[Topher87]

Oh! This is interesting. I also would like this.

I have a dock in my car, and when I plug it in like BlackWolf says the sound plays through the dock connector.

However I don't always have the Car set to AUX, where it would play through the speakers. So if I get an sms or a call, no sound is made.

I would also like something that would force sound to play through the iPhone, but in a perfect world it would be like an SBsettings switch, so I could turn it on and off easily.

Thank you.