i currently have two issues with both of my z1.

they are doing the same exact thing.

-on the nav traffic i am missing the colored traffic line on one direction of the freeway. sometimes it will show but most of the time it will never show. its been doing that ever since i purchased the units. its the same freeways everyday.

-after the z1 cd firmware update install i can not do memo on the sirius music. i will normally hold down the memo for 2 seconds and it will remember what ever song i have but now it wont remember any songs.