1987 Mazda RX-7 Turbo II, Loaded included ABS.

When I let it sit and idle after starting more then 5-10 minutes I get a constant beep_break_beep_break_beep_break its coming from under the dash, and I have NO clue what it is. I dont believe that it is the power steering unit as this is a constant beep no coding it seems. The beeping does not occur if I drive the car and does not change if i rev the car up at after sitting at idle beeping at me.

Any help would be greatly appreciated

 

its in the FAQ...the first place to look...