Adding passive switch

I have an Ibanez Talman - the standard series with Ibanez's own Dynamix pickups and no active /passive switch .
I would really like A Prestige Talman with the Norstrands, but gotta save up and import as no longer available in UK. In the meantime, does anyone know if I can fit an active /passive switch to this bass so it can be used as a passive bass too? I have no problem with soldering and wiring. Just don't know exactly what I need in terms of extra components if any. Input appreciated!!