Just listning to it now, typing as the track plays
Yea, I would make the Clacking at the start fade withen 5-10 seconds down to a background noise, barely audible I would think would be great, or at least not so Loud as it is currently, as it does change beat.
It would be nice to have an optional Music pack for the game, possibly with fan-made ambient music and I think having 'Radio's' in game, like at the Junkyard Markets with a Radio sitting somewhere that plays random music within the area, possibly some old 'Relic' tracks and some general Post-Apco sounding stuff.
But ya, sounds good if as a Ambient track as is, once some touch ups are done to volume, timing and the such im sure it will sound Ace