No fsm. Took the screws out from below the tray but have no idea from there. I don't see how the top dash comes apart, taking the drawer out still seems like you still need to take half the car apart. Which might be the reality?
Thanks for posting that link. Only thing is there are no '67 or '68 Chrysler FSMs listed, unfortunately.
I'd downloaded the '67 parts book from there, but the "breakdown" picture of the I/P just shows parts, which is not much help as to what attaches and where.
CBODY67
eBay is your friend: 1967 Chrysler service manual | eBay
Even if you have to pay $100 for one, it is essential for working on your car.
And one of these:
1967 Chrysler Color Wiring Diagram
1968 Chrysler Color Wiring Diagram
Both items will pay for themselves in reduced mental anguish.
Hope the input helps.
John