car alarm doesnt attract enough attention

Hey im looking for some peoples opinions on how to make my car alarm more noticible i have to park in real bad neighbour hoods sometimes so the louder the better.

Currently siren not very loud only lights that flash are the indicators.

First thing could someone please recomend me a loud siren i wish to add another 2 sirens(can i just wire them in paralle with the current siren?) or would i need to connect them via a relay to the battery?

How do i wire my headlights and parking lights to flash as well currently only the indicators flash if i need to use a relay could someone please tell me what to connect to each pin on the relay to.

My car is a 1998 mitsibithi lancer

My alarm is a dominator not sure of the model number they dont seem to have a website.

All help would be realy appreciated thanks.

i already have the indicaters flashing so if flashing the headlights will use to much battery can someone recomend a brand of siren? i want to add atleast one more depending on how loud how would i wire it? would i connect the siren to a relay connect the battery and siren output from the alarm brain to the relay as well? if headlights are no go how about the parking lights or brake lights?

some links to where i can purchase a good siren online would be great or a brand name and model number?

Thanks so much to everyone who has replied much appreciated