I used to have a F700bt in my old car, and now that my new ride has a junk system i was going to get more than likely a x920bt. i like the z120 also but unsure if i care to spend MORE unless it performs better.
So my main concern is, are these units FASTER than the older F Series models? and are there performance differences between the x920 and z120? i understand the complaints with the MIC and NAV. Similar to what people were encountering back when i had my old unit. But after a while it didnt bother me, all i need is NAV similar to my old unit if slightly better. Any comparison info greatly appreciated!