I just bought an MR2 and for the insurance I need to know if it has an alarm.

There's a light on the dash that says

"security" and a mysterious red switch under the steering wheel that doesn't seem to do anything, and I don't have a remote control keyfob or anything.

So basically what I want to know is: are alarms and immobilisers standard on MR2s? And if so how do I switch it on?

The car's a

'91 imported Mk2 G-Limited.
