Thanks for explaining that. I'm starting to get a hang of this. Someone else mentioned this antenna which seems to go against convention by being small, yet claiming 3dB gain. I like it because of its small form factor but hesitant to purchase aside from all the good reviews it has, simply because of its size, my logic would suggest that's not going to work.
https://www.amazon.com/gp/product/B00794XNX6/ref=ox_sc_act_title_1?smid=A1R3Y6LGYUQP2B&psc=1
Thanks for the extremly detailed response. I wanted to avoid drilling a hole into the roof of the car since its so new (in the event that i sell). I ended up going with an NMO mag mount, and put that in the center of the roof, feeding the antenna cable thru the 3rd brake light, using weather stripping to seal and avoid pinching the cable.
https://www.amazon.com/gp/product/B00794XNX6/ref=oh_aui_detailpage_o04_s01?ie=UTF8&psc=1
I got this antenna, and had someone at work with access to a SWR meter in the lab check it out and determined it was at 1.3 to 1 which is good.
Pics of the install