Do you really need Black for outdoor speakers ? I would replace black with some kind of brown/taupe already being discussed.

I tried a couple of "wood-like" brown colours for the outside of my house and ended up painting over them all in dark green. Just a thought

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8