Hello again guys. I just recently bought the small 52mm tach for one of the accessory voids in the dash. A few minutes ago, I pulled the radio and the two squares to the right of it. Here's what I found:

1) White Red striped w/ connector - Almost sure that this is the tach
2) Solid Brown w/ connector - Is this an illumination wire? If so, should it be going somewhere? :)
3) Solid Yellow w/ connector - I traced the other end to the headlight knob.
4) Solid red w/ connector coming out of the radio harness (car side).

Should any of these wires already be hooked to something that the previous owner screwed with? (There are screws missing that hold the center console, radio and instrument panel which leads me to believe that someone has already been messing around inside the dash.)

If not, can any of these be used for the small tach connection?

Thanks in advance!

Cliff
89 Wagon