Tele wiring diagram with 2 single coils, 1 volume, 1 tone and the Fender 4-way mod lever switch. This diagram shows how to wire a Telecaster style guitar with the Fender 4-way mod switch to add the neck+bridge in series option. In the series setting the output will be stronger and have more bass than the standard middle (neck+bridge in parallel) switch position. NOTE: with most standard Tele style neck pickups, the cover is grounded to the pickup coil ground. When using a 4-way switch to add the series option, the pickup must be modified to isolate the coil from the cover by cutting the jumper between the coil ground and the cover tab and adding a separate cover ground wire (See drawing above). Ready to start? Don't forget the Wire, Solder, Shielding & Supplies. Copyright© GuitarElectronics.com LLC. Unauthorized use prohibited. Click diagram to view full size.