No alarm system installed but red light is on

Try down powering the smoke detector zone either at the panel or at the devices, then re-applying power. That should "unlatch" the alarm for the zone.

you'd better ask your providers or check the user manual. if you buy it from online solar power store, just sent them an email.

The little flashing light is most likely part of an alarm system. If it was an factory installed alarm you most likely can't do much. If it is an after market alarm you can remove the alarm, which is probably faulty if that light is flashing all the time, or you can cut one of the wires to the light.

When a zone has both red and green lights on, it means that it is in delay mode. That means when the sensor is triggered, the system will wait for a predefined time interval (30 seconds) for user to reset the trigger. During this time interval, the system will not beep or alarm. But after that, if user does not reset the trigger, system will go off.

User can reset the trigger from keypad or by remote.

Do you have an alarm system installed? These sound like the alarm indicator lights. They are supposed to deter theft and break ins.

Have you tried turning one of the thermostats off.? They are both talking to the same unit and they may be arguing with each other.

Battery- RED RED (+) IGNITION SWITCH HARNESS (2 CONST WIRES)
Ignition 1- PINK (+) IGNITION SWITCH HARNESS
Starter 1- YELLOW (+) IGNITION SWITCH HARNESS
All Door Trigger- WHITE (-) SMALL HARNESS BELOW ASHTRAY
Trunk Trigger- RED/BLACK (-) AT TRUNK LIGHT
Parking Lights- BROWN (+) BEHIND FUSEBOX UNDER CONSOLE OR SWITCH
Power Unlock- WHITE (+) POSITIVE TRIGGER OR DRIVERS KICK PANEL
PowerLock- LIGHT BLUE (+) IN CENTER CONSOLE "BEHIND FUSEBOX"

You have Blown a Relay in the Alarm System. This VERY hard to Diagnose over the Internet. I would take it to the Person who installed the New alarm and have them run a Coder on it to locate the Relay at Fault.

that must to be an aftermarket alarm system than was installed for an alarm place just take the car to an alarm plce ask if it does have one and have it remove

If you're connecting at the alarm module - you want the red wire from the siren to go to the brown wire on the alarm(the one that's in a plug with 12 or so other wires), not the red (red wire is the constant power input to the alarm).