Hi, this isn't related to the parent comment, but I'm wondering why you went through all this effort, which you don't seem to have enjoyed, just to be able to listen to music at home but not at your desk. Isn't all the stuff you have pretty bulky to be carrying around? Not to mention the portable CD player probably skips if you're walking around with it somehow in a pocket.

It seems like all of this could be solved with some bookshelf speakers. You can hook up your portable CD player or browse Craigslist/Goodwill for an older HDCD player that'll run higher sampling rates and queue up multiple CDs, have music for cooking/cleaning/exercising. Maybe even get a Chromecast Audio and have effortless streaming.