^yeah i know exactly what you mean. We have a cl9 and cu2.
THe cu2 also has another button to activate the headlight washers separately whereas the cl9 washers would activate as long as the headlights are on regardless of whether u want them to or not.

Im sure there would be a way to retrofit. I replaced my front bar and decided to disconnect the headlight washer unit entirely. I understand that it is illegal to not have the washers but i'll wait till i get pulled over for it

If you cant retrofit, you can always disconnect the unit. For me, the headligh washers were useless. Only thing it did was to make the windscreeen washers weaker at night