interior electrical circuits

i recently had to replace the heater core in my '98 s10. after putting everything back together, i find that the circuit that controls the radio shut off & and dome light operation when the door is opened isn't functioning. manual control wheel for dome light is out as well. anyone have any ideas?? thanks

Sounds like a grounding problem to me...check all the ground connections to make sure the circuits are actually going to ground. I've experienced the same thing recently and discovered that I had put one of the grounding connections at the bottom left dash to a connection that I thought it came from, but it didn't go to the metal part of the dash support. If you don't get a good ground on these critical circuits, it'll find another way through other elements, usually guages and lights

Thanks man, that's an idea, I was pretty meticulous in attempting to put all screws and bolts back from where they came from, but I may have screwed up somewhere. appreciate it.