c) I've been told that on occasion, as often as 1 out of 20 or 1 out of 25 car-stereo installs where steering-wheel controls are involved even done by professionals, the air-bag deploys costing hundreds or even $1500 in replacement and repair costs. Are there steps that can be taken to insure that this sort of risk is minimized such as disconnecting the battery or the air-bag fuse in order to disarm the bag and prevent this kind of accident? Likewise, are there things to avoid doing that would set off the air-bag? Does anyone know the most at-risk vehicles to not attempt DIY installs with?