I mounted a small cobra cb in my toyota pickup in the ash tray area and the only thing I hate about it is that it doesn't have channel memory. Whenever the truck is turned off the channel goes to 1 when it is started back up.
Not sure if there is an alternative that doesn't do this, but for you guys that are mounting one in the ash tray, it would be worth looking in to. It doesn't sound like that big of a deal, but when you're wheelin' with a group of people and you keep forgetting to turn it back to the right channel every time you stop, it kinda sucks!