Solenoid wiring question

[newbraunie]

I am cleaning up some wiring in the engine compartment. The purple wire that runs from from the fuseblock/firewall to the solenoid is currently routed through the firewall gutter- to top of motor right side along intake manifold/valve cover down front of motor to solenoid. Is this how this wire was run from the factory? Did it come with fabric insulation? The insulation is cracked from heat and I need to replace this wire.