Hey Ariana,
I hard-wired the (flashing device) before the light, inside the cab.
I ordered it from my supplier.
I've multiple suppliers.
Nothing, I repeat NOTHING is a replacement type bulb/LED in my truck, it's all been retrofitted by yours truly.
If you're interested H.M.U.
-Truckin'-
Truckin is a top secret guy........ No secrets become known to the world