Where do you guys have it mounted, back, front, roof, glass? Can it be placed under the dash? I know it can't pick up a single under metal but what about plastic. I would like everything hidden as much as possible.

mine is on the roof just above the back glass in the middle.

I'm going to put my GPS antenna on the front passenger side of the dash.

mine is also mounted on the passenger side of the dash. I consistently receive signals from 7 or 8 of the sats.

I have a chrysler crossfire and thought it would look liks a** with the bump on the roof.
I put the gps ant. on the dash all the way up by the glass in the center.
Works great.

I guess I'm the 4th guy who put in in pass side of the dash- all the way fwd, and I too, have 5-8 sats @ any given time.

^^^^^^oops- forgot to log in......D'oh!

mines mounted in the center of the dash in my avalanche ( its the same place i had for the n2 )

Ok guys. Here's the scoop on antenna placement. You do NOT have to have the GPS or XM outside the car. As a matter of fact, you don't even have to have them exposed! I have XM on my car and I installed the antenna under the dash by attaching it on top of a metal brace. There is no metal above the antenna. It works great.

I just installed the Z1 in my wife's Aviator. I'll be damned if I'm going to have the XM and GPS antennas exposed on her car. That's just an invitation to have something ripped off. On this car, there are two unbelievably great spots to mount antennas under the dash. The spots are on top of defroster ducting...one on each side of the dash opening for the unit. I took the metal plate for the GPS antenna and fixed it to the ducting with Velcro. I cut another steel plate for the XM antenna and fastened it with Velcro. (the Velcro also helps insulate the metal from heat from the defroster) Then I stuck the antennas on the metal plates. Both antennas are completely covered with the dash now and with the radio cover on the radio in the Aviator, there are absolutely no signs of what's in there. The reception?? PERFECT!! Both the GPS and XM meters are full strength. Before I resorted to installing one of these antennas outside the car or in plain view, try it under the dash or rear package tray first and check out your reception. Just make sure you mount it to metal, under a window, and have no metal above it. I think you'll find you will be surprised how well it works.

I've talked with "radio guys" who like stealth-mounting antennas INSIDE external non-metal door mirror housings. Another non-metal mounting point example: beneath the plastic/fiber hood of a hummer H1.

i had removed my stock sub on my car, and under the grille in the rear deck for the sub is where i mounted it. like "guest" said, i dont want to invite anyone to know i have aftermarket navi. it works great there.
J

Have a '05 Nissan Altima and I have the antenna on the passenger side dash and no problems at all. Its hidden and doesnt attact attention.