For a 1998 U320 is the power supply for the E.L. lighting on the dash, the same power supply as the Javalina?
There is a little box under the steering wheel usually tie wrapped to the column at the base.
Company in Oregon makes one the works . Best to find one at a junk yard
It is actually an inverter that powers those lights, so it is not the same as the power supply for the monitor system.