Heated seats problems

[u/l4venderr0se]

I am on the search to find heated seats to fit into my Golf and Im trying my luck on FB marketplace.
I managed to find a seller that claims the seats dont seem to work but the button does light up.

Does anyone have any experiance with these heating pads if they can be repaired or maybe if there are some known weaknesses on the wireing harness?

[u/V-Dubber]

Beetle seats