What is the cost to fix non-working horn. on 1991 Volvo 240

Is the horn connected to the air bag? The horn doesn't work at all.

Asked by for the 1991 Volvo 240
There are two horns in the front grill area get someone to press the horn switch and check for power at the horns if there is power then the horns are bad probably, .6 hour labor to replace the horns and $50 for the horns, if there is no power at the horns when the button is pressed the fuse needs to be checked and the circuit traced to see where the fault is.