Painless Wiring 28 Circuit Classic-Plus Customizable GM Pickup Truck Chassis Harness

I purchased this to replace the wiring in my 71 chevy as well as provide a base to include fuel injection and other items that weren't around that long ago. The fuseblock includes all the connectors for the stock items on the truck with only a couple exceptions like the brake light switch connector for which i simply used the connector on my existing harness. The more difficult part is selecting wires for items not setup for use in the fuseblock already like fuel injection and any other accessories like electric lockers, cb, etc. I like it and would buy it again but would like a more detailed wiring diagram in the instructions to aid in customizing the harness for other accessories.