If you’re concerned with accidentally leaving the lights on I’d connect the auxiliary light switch to the Light Blue with Red Stripe wire. This wire only receives power with the headlamp switch in the park/headlight on position. Since your truck has a headlamp reminder chime, you’d be less likely to forget to turn them off.
Only draw back is your auxiliary lights will only work with the headlight switch in the park/headlights on position. If you want them to work anytime the ignition system is in the run/accessory position then use the Yellow with Black stripe wire.
2001 Ranger Edge 3.0 V6, 5 speed M/T
Limited Slip Differential, James Duff Traction Bars
Kumho 30x9.50 15 MT / Black 297 Series 15x7 Rims