Hi everyone,
Just picked up an 87 mk1 mr2 today.
122k miles on the clock, alright condition. (5 spd of course)
Ill get pics up later on

.
Heres the issue:
When i start the car up, there is a loud alarm tone, sounds like its coming from right behind my head.
It lasts for about 2-3 seconds.
It goes away after this.
It didnt do this when i test drove it, i believe it had something to do with me or my friends tinkering around with the lights or switches or something.
Anyone have any suggestions or know what to do?
Thanks in advance,
Zac