Yes run 12v to the relay and switch it from there, bunnings will have everything you need, any auto parts place will have a washer pump. Covs do a washer bottle, pump and wiring as a kit

__________________
Marti


Car: C Red S13 Silvia 2.3l 400+rwhp-SOLD
Daily ae82 4age corolla (light mods)-Sold
Daily:SWB GQ Patrol
Will be a 03-04 STI next