wiring up dash and have a few questions?

[tripleblkr/t]

So I put the new harness in my 69 charger r/t dash, and bolted it all up. Now I'm testing all the light to see if they all work. I have no steering column in it yet so those wires are not not hooked up. This is my question when I turn my high beams on my dash starts sparking on the back. So I pulled the cluster out and and with the high beams on the whole dash cluster frame has power to it with the test light. When I put it on low beam the dash cluster does not. With high beams on my wires that go to the high beam switch get hot.

[70 500]

if the wires are heating up then too much current is being pulled through them something is creating too much resistance in your hi beam circuit i woud say. as for power runing thru the dash frame no idea