Speedometer wiring/connections for 1989 Response LX

[Farrellcat]

A friend boat a 1998 Response LX.  Both speedometers don’t work.  We can here air passing through the pits tubes when connecting pressure from the pitot tube at the rear.  There is no connection on the speedometer for the tube nor can we find the tube.  Where is the tube from the pitot suppose to connect to?

farrell cat.  

[justgary]

2 hours ago, Farrellcat said:

A friend boat a 1998 Response LX.  Both speedometers don’t work.  We can here air passing through the pits tubes when connecting pressure from the pitot tube at the rear.  There is no connection on the speedometer for the tube nor can we find the tube.  Where is the tube from the pitot suppose to connect to?

farrell cat.  

Under the dash at the black box MDC.

[UWSkier]

any of the other gauges work?