Company I used to work for in Canada used to rig up every machine with an input for a walkman/discman - great for those long positioning flights or while bucketing - they used to cut out for radio work too so there was no interference.
How about some System of a Down, the Deftones or Filter, or if you're feeling mellow try out Bhudda-Bar
Guy in our outfit plays the Top Gun soundtrack.......I often wonder what he's thinking........