Here’s a tip before you put the dash assembly in. You know where the dash frame bolts to the door jamb? Where the dash frame slides over the bolt screwed into the jamb? Right under that bolt, sand down the the bare metal and coat it with some silicone electrical grease. Do the same thing to the back side of the dash frame where the 2 will mate up when tightened. One side is plenty, but doing both sides wont hurt. Doing that will provide a solid ground path to the body for all dash components, and keep you from chasing electrical gremlins later.
