Halo headlights and turn signal question

diymirage said

What if he simply runs one wire (with diode) from the left parking light to the left halo
Then run one wire (also with diode) from the left turn signal to the same input wire on the halo
Do the same for the right and done

I could be wrong of course, but why wouldn't this work?

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What about the parkiing light circuit? If the halos are hooked up to the park circuit, they are essentially wired together, no separation. If you isolate them with two more diodes, (4 altogether) then powering up the park circuit will negate the turn signal "feature" (I think)