The OP didn't specify RS or open headlight (I assume RS), but note the hose routing for the washer jar (CE1 pg A2 view A) is for a non-RS car - the jar is on the passenger side for the RS version, supply hose comes from the opposite side; obviously longer reach. Hose routing at the valve is available online in Camaros.net and Corvette forums - function is the same between Corvette, Camaro and Caprice/Impalas in '69.
Wires are piggy-back terminals, mount to the terminals on the washer pump under the harness plug.
Regards,
Steve