hello, I have one of the usual aftermarket Audiovox cruise controls
on my 86 with AT.  I think it's model CCS-100?  I use the magnet
speed sensor kit on my drive shaft.  It's not working well.  It
engages briefly and then immediately disengages.  It will then
attempt to resume to that speed if I press that button, but
immediately disengage.  That makes me think that it is at least
remembering the speed I set it to.  I've gone through the
troubleshooting of all the wires as the instruction manual specifies,
and everything is good.  I'm wondering if I could devise some way to
monitor it from the driver's seat to figure out what is going
on.  Thanks for any advice.

Edward