antilock non-functioning, '88 5kcstq

[auditude at neta.com]

I'm glad the list is back!

This morning, I had to hit the brakes a bit unexpectedly due to an 
approaching fire truck.  I locked them up and slid a little while.  
This being the second time I've noticed it locks up instead of the 
abs taking effect, I thought I'd ask for help.

The owners manual says that there is a warning light in the center 
of the idiot light cluster in the instrument panel.  This light does not 
turn on in my car with the key on before starting.  Are there any 
fuses for the abs I should check?

Also, does anyone know of any things to check for as far as fixing 
my intermittently working stock stereo system?  I get the rear and 
front right speakers working most of the time, but not all and not 
consistently.  I'll redo the whole thing later, but in the meantime, I 
just want things to work.

Thanks,

Ken