There is no option in Techstream to adjust the volume (or sound) of the turnsignal. You can adjust the number of times it flashes when you press it "half way", just before the notch.
I have set mine to blink 4 times. That is enough for a normal overtake. When using it for a rigt or left turn it should return to neutral after taking the corner.
I have set mine to blink 4 times. That is enough for a normal overtake. When using it for a rigt or left turn it should return to neutral after taking the corner.