Amazon lists this: https://www.amazon.com/iJDMTOY-Elect.../dp/B00RM26LXO
From the pictures I'd say it looks like it will be plug and play, and for $9 plus shipping it's hard to beat.
After reading reviews several buyers complained of a normal flash rate at idle, but a much faster flash at higher RPM. Probably indicates a change of system voltage varies the flash rate. Recommend looking at others on amazon (and be sure to read the reviews!).
If it has already been done, it is safe to assume it is possible to do it.
On the other hand, if it has not been done never assume it is impossible to do it.
------- Rob --------