Amazon: Les Paul Junior Pre-wired Harness: Musical Dec 23, 2018Les Paul Junior Pre-wired Harness SKU: BYO-LPJR-HARNESS Upgrade your wiring and maximize your tone! This is a pre-wired harness for Gibson Les Paul JR guitars. With 50s style wiring the overall tone gets stronger and more transparent, so the notes seem to “open up”. 50s style wiring also reduces the loss of treble when rolling back the volume.5/5(2)Price: $49 les paul jr wiring harness | eBay Save les paul jr wiring harness to get e-mail alerts and updates on your eBay Feed. + Items in search results. SPONSORED. 2004 EPIPHONE LP JR LES PAUL JUNIOR ELECTRIC GUITAR WIRING HARNESS SMALL POTS E5. Pre-Owned. $17. or Best Offer. Free Shipping. Epiphone - Metric - Les Paul Jr - Volume Bleed Style Wiring Harness .