arm85,
no there isn't a way to do it. if the alarm is fitted properly then you shouldn't need it which alarm is it exactly ( PM me.)
gexiaowen,
brant are no longer in business, they went into recievership as of may. anything leftover is being sold as is. once its gone there's no more.
that said no its no worth the $400. what alarm do you have on it currently? (pm me) if its hidden properly , meaning that a quick look under the dash doesn't show the module. then you shouldn't have to worry about it. put a few hidden switches in if you like.