Daniel in SD
(supervised)
It's going to be very close to the antenna. It exists to eliminate the signal loss in the wire between the antenna and the tuner.Like you said the internet isn't always right. If I was a Tesla engineer that would be the one of the parts I'd get rid of as unnecessarily complicating assembly. I'd have the tuner changed to include an RF amplifier. I posted where to start looking if it exists. It's probably in the same door pillar as the tuner further down.