Pop the third brake light off and snake the wire through the headliner out the hole for the brake light. The rubber grommet around the brake light compensates for the wire.
brb gonna go take a pic I forget that was 3 years ago
it runs just like you see down the driver side winshield to under the cowl then in the gromet in the firewall to the unit.You can almost use your fingernail to lift the rubber around the winshield
Mine is also like Jeff's but it's worth noteing that this location advertizes that you have a stereo upgrade . Also it is VERY easy to pinch the antenna wire ( and ruin it for good) as you stuff it in the window molding. IF I were to do it again, I think I'd install it so it was down at the base of the windshield on the ( black) wiper arm cowling where it would blend in better. My brother has his laying on the dash and it picks up just as good as mine.