i have a 2005 str-6 and my alarm keeps sounding off with no rime or reason.. i mean like 2am setting in my closed garage it starts squealing sound not the horn and all the lights start flashing and in different places and different times ....does anyone have a idea why??? i have checked everything i could think of... please its been doing it for 2 days now 7 or 8 times in a 24 hours......