Finding brake switch/sensor on a Volkswagen?

[Mustang]

My question was directed at Joe.

My bad; reading incomprehension.

Can you just tap into the third brake light on the upper rear parcel shelf? or is it too long of a run?

I could as a last resort, but that would require some type of capacitor in-line since VW's use a two wire system (brake and running on same wire), and I have zero comfort with capacitors.