Hi,
The black wire with the red tracer goes from the switch to the starter relay to energize it. The white wire with the red tracer comes from fusible link 8 in the under-hood fuse box. The power from that wire goes through the ignition switch and then to the starter relay when the key is in the start position, and it powers other fuses in the junction box on the left side of the dash.
I attached a pic below related to the switch and power distribution in the junction box. The black wire with the red tracer in the pic shows it is to engine controls/ignition. That is the one that goes to the starter relay primary side.
Let me know if this helps or if you have other questions.
Take care,
Joe
See pic below.
Image (Click to make bigger)
Wednesday, August 10th, 2022 AT 3:59 PM