Hi! I've owned a pair of ER4-P for a long time, until the cable broke at the Y. I completely failed to find replacement cables with the 2-pin plug they used (and didn't think to come here then, because I've been here less than a week and already found several). I sent them to Etymotic for repair, and they found one of the drivers had developed some distortion and the pair was mismatched. Their best guess was that I may have let them drop and one of them got damaged. I decided then to upgrade to ER4XR, thinking that their MMCX plug would make it easier to get cable replacements (and aftermarket options for headset/mic, inline remote and over-ear memory wire) and then I find that Etymotic engineered some changes to the MMCX connector that solve some of its problems but nobody else uses, and is barely compatible with the regular MMCX cables. I got a headset cable for public transport, and the damn plugs are always breaking contact and dropping out (when I'm lucky), or one the drivers falls off when I'm taking the phones out of their pouch. I already dropped one of the drivers on the sidewalk and it took me several minutes to find it afterwards... Where can I get plug converters from Ety-MMCX to MMCX, or headset/inline remote with Ety-MMCX plugs? I'd like to have posted this on the "If you still like Etymotics..." thread (I've started reading it from page 700 after the SR/XR line was released and people started discussing the plug), but it's a lot of thread. Thank you for the help.