Where do most people mount the shock snsr

I mounted 2 of them- one under the hood right onto the firewall and wired it into the hoodpin wires, and the other in the trunk wired into the tilt sensor wires

I hate shock sensors also but the best place to mount them is to the steerin column under the dash.

thats why they never work right. even facetoy alarms don't mount shock sensors there.

thats why they never work right. even factory alarms don't have shock sensors mounted there.

It really depends on the type of shock sensor.   Most  DEI shock sensors are best if they are wire tied to a main wiring harness (thus the reason they don't have holes to screw them to anything).  Other ones (that do have holes) can be mounted to anything.   But, I prefer even straping those to a harness. I would NOT put it on the steering column.  I have seen way too many wires caught around it. 

bundle of wires>>steering columnHouston,TX

"The two most common elements in the universe are H+ and stupidity" (Ellison).

some people should just stick to hooking up amps. if you can't make a shock sensor work correctly, which is probably the alarm installs equivilant to opening a can of soda you need to step back and watch someone else make it happen.