My mod don't have sound. Help

[Ronald_Arthur_Jackson]

Here's the mod. I Know a little bit about .vehicle file tinkering such as the engine and sound tinkering. That's all I Know, so I Tried to apply that knowledge to a quiet mod using other mods as samples and examples.
Here are the file I am having trouble with
AND Here is the .SOUNDSCRIPT File
2104_engine
{
trigger_source engine
pitch_source engine_rpm
pitch_factors 0 0.95
gain_source injector_ratio
gain_factors 0.18 0.21
// sound 300.0 focus_idle.wav
sound 1000.0 focus_idle.wav
sound 1800.0 focus_1800.wav
sound 2000.0 focus_2000.wav
sound 2500.0 focus_2500.wav
sound 3000.0 focus_3000.wav
sound 4000.0 focus_4000.wav
// sound 7000.0 focus_6000.wav
}
mv4Skid
{
trigger_source screetch
pitch_source screetch
pitch_factors 1 0.15
gain_source screetch
gain_factors 0 0.15
start_sound 1 mv4skid.wav
}
mv4rollin
{
trigger_source always_on
pitch_source wheel_speed_kmph
pitch_factors 30 0.2
gain_source wheel_speed_kmph
gain_factors 0 0.0035
sound 60 mv4rollin.wav
}
mv4Wind
{
trigger_source always_on
pitch_source air_speed_knots
pitch_factors 0.02 0.6
gain_source air_speed_knots
gain_factors 0.0 0.0035
sound 60 mv4Wind.wav
}
mv4Starter
{
trigger_source starter
// start_sound unpitched D12_start_start.wav
sound unpitched mv4start.wav
// stop_sound unpitched D12_start_stop.wav
}
mv4break
{
trigger_source break
gain_source break
gain_factors 0.1 0.003
sound unpitched mv4break.wav
}
K700Horn
{
trigger_source horn
// start_sound unpitched K700Hornstart.wav
sound unpitched K700Horn.wav
// stop_sound unpitched K700Hornstop.wav
}
mv4shift
{
trigger_source shift
start_sound unpitched mv4shift.wav
}