I bought a relay harness for my headlights

[Nacho-RT74]

I can’t find any reason to need a diode anywhere. I worked on a 70 Charger fixing the headlights doors system ( installed a bosch 5 prongs relay due the original one being damaged ). Owner already had a headlights relay upgrade made ( not with an extra harness but inserted into the wiring… it’s a very natural/typical upgrade in Venezuela made dairy since ever on old car, nothing fashion ) and never had a problem.

On a side note, looking at pics I THINK there is already a diode into one of the harness end

[brigond]

No, I haven't heard from them and am beginning to think I won't hear from them.

[DynoDave]