I added a L.R. Baggs Lyric system on my Gibson J 160 e using the existing input jack. It has a pull up switch on the volume button so I can switch on the Baggs system when pulled up and original p90 pickup when pushed down. It also has a switch to bypass the battery when not in use so I don't waste my battery because the system is always on. I use the original on my Vox amp. And Baggs on a sound system. The Baggs sounds as a acoustic guitar sound and original if you want The Beatles sound. It's awesome 😎. The great thing about this is that if you decide to sell it later to a purist, you can reverse it back to its original state.