I don't have a Tahoe, but even on my Saturn Vue it was able to be installed under the hood on top of the battery case. Inconspicuous and out of the way. Check under the hood for a spot.
Wayne MSGT USMC (Ret) & Earlene (CinCHouse)
2008 Winnebago Destination 39W
It is what it is, and then it is what you make of it.