adding more sirens to alarm
 

ok, heres the deal, i have a clifford alarm system the came with my car when i bought it, and i dont have any books for it, nor to i know the model number. my question is how hard would it be to add several more battery backup alarms to the system? and where could these be purchased?> thanks for any help

Any shop will have them. I know most FS stores keep at least a couple in stock most of the time.

Personally I don't like the sirens with their own back up battery. I would rather get a pair of small 12v 7ah batteries and use them to battery back the whole alarm.