Piccolo bass pickups
 

I'm converting a Squier P-Bass into a piccolo and I'm worried that the old pickups won't sound great (of course) but I don't know what pickups would run the best for a piccolo bass.
On my P-Bass I have a jazz pickup and a precision pickup.

I kept the same P/J pickups when I converted mine. I play it through a tube preamp to make it sound fuller and add zing.

The thing you might want to change is the tone control capacitor. If you've a .047 uF one now, try a .033/0.022 uF one instead for more highs.