I saw a few on Crutchfield are very low profile. I may just try and jam one under the rear seat, or seat back. Im 6'3" and no one will ever ride back there.

Or, under the pax seat. Dunno but I need something.

I don't want to harm the car's resale value in any way at this point, so no surgery. Any thought on whether or not it would fire through the fuel tank (adequately) if I mounted it vertically on the forward trunk wall???