Thank you for purchasing a Gunstreet harness. Below is your step by step instruction
Solder your pickups "Hot" wire to the first lug on the Tone pot. (Seen here using Fender style cloth leads. if you are unsure of what your pickups hot output is, please refer to your manufactures stock diagram)
Solder your pickups "Ground" wire to the metal casing of the volume pot. (Seen here using Fender style cloth leads. if you are unsure of what your pickups ground output is please refer to your manufactures stock diagram)
Finish the controls by soldering the ground wire coming from your basses bridge to the metal casing of any pot. In this case the tone pot was the best location.
Once you are done soldering and before you reinstall the screws on the pickguard, test all the controls but lightly tapping the pickups with a medal object.