My son, a ham and a Reserve Deputy Sheriff/Search and Rescue Volunteer , will be taking delivery on a 2020 Ford F 150 in January. He uses it for SAR call outs. His current truck has two radios--a 2 meter/440 and a county issued public safety (VHF) radio. His current truck uses top of cab NMO mounted antennas as does my (pre-aluminum) F 150. He and I are trying to identify the best means of installing 2 antennas (a duo bander and a VHF) on his new truck. It seems everything but the frame is aluminum. Thus far we have concluded that the (maybe only) way to do it is to use an NMO on a bracket through the hood seam on each side of the hood bolted to the body but with a wide copper ground strap from the frame of each NMO mount to the frame. Not ideal IMO because there will not be metal directly under the mount to serve as a ground plane. But that is the only idea we have come up with thus far. Anyone here faced and overcome this issue and, if so, what did you do. Thanks for any suggestions.