Yes a jumper wire, on the wire harness there will be 2 thicker wires normally to the far left and far right on the wire harness, these two wires will be thicker then the others, you will need to jump a wire between these two wires. They also would normally be reds.
Yes put the link in, make sure the harness is not touching onto anything (id normally put the link in and then tape the wire harness.
Put the front back on or at least make sure the door switch is hooked up, you can leave the drum out and the belt off, so long as everything electrical is hooked up and the link is between the two large wires.
If the heater fires up then your motor is bad.
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