Check out my budget wiring looms below. These harnesses are both available right now to buy from me via eBay.
Budget P Bass Loom
The most simple wiring loom for Precision Bass comprising a volume, tone with mylar capacitor and mono jack socket. Made with inexpensive Korean parts, so you get decent quality without burning a hole in your pocket. Solderless connection via PCB.
A simple wiring loom for Jazz Bass comprising 2 volumes, tone with mylar capacitor and mono jack socket. Made with inexpensive Korean parts, so you get decent quality without burning a hole in your pocket. Solderless connection via PCB.