Vehicle sounds

Hi,
I've got some sample vehicle sounds from a CD and want to use them. I created AudioProfiles:

datablock AudioProfile(ScoutEngineSound)
{
   filename    = "~/data/sound/car/engineidle.wav";
   description = AudioCloseLooping3d;
   preload = true;
};
datablock AudioProfile(HardImpactSound)
{
   filename    = "~/data/sound/car/hardcrash.wav";
   description = AudioClose3d;
   preload = true;
};
datablock AudioProfile(SoftImpactSound)
{
   filename    = "~/data/sound/car/softcrash.wav";
   description = AudioClose3d;
   preload = true;
};
datablock AudioProfile(WheelImpactSound)
{
   filename    = "~/data/sound/car/wheelimpact.wav";
   description = AudioClose3d;
   preload = true;
};
datablock AudioProfile(ScoutThrustSound)
{
   filename    = "~/data/sound/car/engineaccel.wav";
   description = AudioClose3d;
   preload = true;
};
datablock AudioProfile(ScoutSquealSound)
{
   filename    = "~/data/sound/car/wheelsqueal.wav";
   description = AudioClose3d;
   preload = true;
};

and I added them to my car datablock:

// Sounds
   jetSound = ScoutThrustSound;
   engineSound = ScoutEngineSound;
   squealSound = ScoutSquealSound;
   softImpactSound = SoftImpactSound;
   hardImpactSound = HardImpactSound;
   wheelImpactSound = WheelImpactSound;

But the engine sound is only working if I toggle camera with alt + c and if I move the camera I hear nothing like always... What is wrong here?