Vehicle mounts ? minimal damage

I?m looking for some tips on how to mount a couple of radios in my ?07 with minimal hole-drilling and the same kinds of tips on mounting antennas (again, with minimal hole-drilling).  I?ve seen some pretty good examples for antennas, but not so much for radios.

What I did, no drilling required, I built a piece of wood that would clamp around the headrests and slid in the map pocket, now you can mount your radios to that piece and put it on the back of the passenger seat. No drilling anything. As far as the whips, mag mounts. Or you could screw some brackets to the underside of your roof rack cross bars

here is what i just ordered for my 2010

http://www.havis.com/products/CON_VS_10TMS_0DG_HC_TAH_07_14-36126-871.html

its a modular designs that you can put different units in , and no drilling holes in anything