i drive a frieghtliner cascadia day cab for work. the factory mounted antennas a broken and i need to use something else. the truck has mirrors that do not permit clamping an antenna mount on and the body is aluminum i think since a mag mount wont stick to the roof. i cant drill any holes and permanantly mount anything. does anyone have an suggestions? also on a side note, i have a cobra 29 chrome, is it true that these radios dont like to worked on and are unable to do anything other than the 4 watts out of the box?