well if they got the radio out with a chisel then he still didnt have it in good enough see on the back of EVERY aftermarket radio that have a spot for a bracket for security..... now most people just think its for a suport and not needed..

or it just comes with a pathetic short steel strip...

now what i used is a steal straps well not sure what they are called BUT they are about 1/2-1inch wide with a bunch of holes in it for moutning every 1inch or so... and is preaty flexable so it bends all around and its still hard to break. and i have it doubled up.
and i have it ran far back in the dash so unless you know WHERE its bolted trust me that dash piece/radio AINT MOVEN more than a half a inch! [8D][sm=trust_me.gif]

and the radio has 4 bolts holding it to the factory radio brackets as well as long fine threaded bolts holding the bracket in....
PLUS car alarm and parking in my garage at night also helps out