Communitys Wiring Schematic for MM90 By ernieball.com - February 19, 2019 Share on Facebook Tweet on Twitter Wiring Schematic for MM90 Looking for the color codes for the MM90 pickup…wiring one up as a LP Junior style…single MM90. Any help would be appreciated. read more Source: http://forums.ernieball.com Tags: Ernie Ball, Ernie Ball Guitars RELATED ARTICLES Vault guitars The evolution of the majesty guitar new to JP15 – need pointers if you have them The Vault – Dream Guitars New OLP counterfeits? Hello To All JP15 tremolo cavity and stud through the body Volume cutting with StingRay Special NGD – Diablo Blue Axis – dare I call it a BFR? Someone had to.