R34 gt-t interior beep?

[idek]

So when i run my car there is a continuous beep every couple of seconds similar to newer cars seat belt warnings or an open door warning (the two things iv'e checked) does anyone have any ideas what it could be? there are no dash lights or anything to make it obvious to me what the issue is. Thanks.

[Kinkstaah]

There's a couple of beeps I can think of. One is the 'key' beep and the other one is the reverse beep (for auto cars).

Do you know which one it is? Just so that you can then narrow down which circuit is causing the issue.

[idek]

id have to assume its a 'key' beep since its a manual (which i should've mentioned above apologies). car also has an after market security system not sure if immobilizer was fiddled with but iv'e owned it for close to a decade and this is the first beep iv'e heard.