dude don't mislead ppl lah!

its not only civic become their target if u see the top 5 list all are 'T*Y**A' laa nowadays even protong oso were not spared....its all depends on how u take care of them but if things happen & we can't avoid....thats why they have things called "INSURANCE"!
For the aftermarket alarm, u can consult ur Honda service centre to seek advise whether they'll let u install or not depends on ur service centre laa.....some SC let u install the aftermarket alarm....their only concern is ' any tempering will void warranty' so a good installer & good alarm wont wont mess ur warranty....a locktech with 2nd immobiliser is good choice to slow the thief down...