Closest thing you can do is buy something like SMSL PL100 or PL150 or PL200 and then connect it via Toslink optical S/PDIF to your WiiM's optical input.
I have a PL150, since it has a remote and it comes in solid black. Works great. I tried a regular CD drive when I had the Eversolo DMP-A6 Gen 2, but the problem with those types of drives is they spin up quite fast and loudly. The players like these SMSLs do not do that, they stay nice and quiet, and yeah, the remote is handy when you listen from 10 feet away.
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-Ed