'99 onwards models required the main headlamps on (dipped beam) for the headlamp washers to operate. According to the manual, pre-99 models do require lights to be on but only the sidelights and not the main lights (wiring diagrams for '97 - '99 models also show this to be the case). However, as I don't have pre-99 car to check this out on I'll take your word for it because I guess it's possible that the manual is wrong.Now that depends on the year of build, pre 99 they squit together all the time.
The nozzle where the water comes out is actually at the base of the wiper arm. No pics of a 146 but this is it on a 145...cant find hose on boot lid or the nozzle were the water comes out