At 07:55 PM 12/16/2009, Richard Koerner wrote...
>What we need is a simple fix.  A small "box" of electronics, wired in
>so as to detect any of the red LED's coming on (oil pressure,
>alternator, coolant temperature), with a LOUD piezo speaker blasting
>you to "get OFF the road and shut down IMMEDIATELY!!!.   Doesn't have
>to speak words....just be obnoxious.

Depending on the individual circuit, a warning lamp might be triggered
by a wire going high (other side of the lamp is always grounded), or by
a switch to ground (other side of the lamp is always +12V). Both can be
combined in a "wired-or" by using a diode for one type, a transistor
for the other. Then just send the combined signal to a piezo buzzer,
like a Sonalert. <$10 in parts.

(BTW, this is hardly EE level stuff)