Glass mount antennas are a bad idea in general. Today's car glass has defroster wires and antennas in it which will mess up your signal.
Bite the bullet and drill the hole.
I'll drive around with my HT or no radio at all before I drill a hole. That isn't going to happen. Period.
I've found a mount that will probably work. But I need to measure the clearance between the car and the garage door. Otherwise, I may be putting the antenna on the lip of the hood if I go through with this project.
Probably the best in the long run. Good luck with finding a solution. The Diamond/Comet lip mounts are really nice with the thin coax for the rubber seal portion...
I've found a mount that will probably work. But I need to measure the clearance between the car and the garage door. Otherwise, I may be putting the antenna on the lip of the hood if I go through with this project.
Certainly much better than a through glass antenna. They're doing all sorts of stuff with the glass these days.
I have used a Larsen 220 MHz through-glass antenna for the past 12 years and it works fairly well. However, it does not compare favorably to a 1/4 wave antenna installed in my NMO mount, so that should tell you something.
Have you considered an NMO mount installed under the lip of the Outback's rear hatch? I did that with a 2002 Subaru Outback and it worked great. I now use the same mount on my Jeep with excellent results on 6M, 2M, and 440 MHz. To establish a good RF ground I did drill one small hole under the hatch overlap but nothing is visible on the exterior of the vehicle. It works much better than my through-the-glass mount and I can still drive into the garage without any contact between the antenna and the garage door.
Whatever you decide, good luck with the new installation! -- Politicians are the only people in the world who create problems and then campaign against them. (Charlie Reese)