Just traded my wife's XC90 for a 2009 XC70-- like the vehicle very much, especially with the bluetooth and the USB/iPod connector.<p>Want to hard wire my radar detector like I've done before in the XC90 and in my S60R, and am looking for help.<p>I've routed the power wire to the fuse box under the glove box. Which fuse to use? Moonroof is #10 (20 amp). Or, should I try an unused slot?<p>Next question-- where to find a good ground? Lots of manly plastic under that dash, but not much metal.<p>Thoughts, anyone?