I'm trying to get a mono playback option for my iPod 5th generation 30GB (as there is for the iPod Touch, apparently). Since my iPod only plays one channel (water damage, I think), I'd like that one channel to be a composite mono signal, so that I can then use a stereo-to-mono jack, yielding a composite mono in both ears. I don't want to re-import all my songs in mono; I just want the option. Any firmware hacks? Thanks.