That looks like a mini USB power plug, which if true, is irritating. About 4/5 of my USB powered devices are micro and 1/5 are mini.
So all you people saying USB is better for portable devices than lightning because it's a standard... I call B.S. There's mini USB, micro USB, USB 3.0, and now yet another USB plug is in the works (that can be plugged in either side up).
The wired version of the tape deck adapter sucks when it comes to sound quality.
It depends on the adapter. I had an RCA branded adapter that, indeed, had poor quality. I "tolerated" it until one day it broke. I replaced it with a Sony branded adapter and it was
amazingly better.
These adapters have actually been available for years (from sites like Dealextreme).
I have been trying to get one of these for years and it's frustrating because I can find pictures, reviews, and sites that claim to have them, but they are always discontinued or out of stock. Indeed right now, I got excited by your post and went to DX only to find out for the umpteenth time that they are out of stock.
I try to contact the manufacturers, but they are always made by fly-by-night companies that aren't around any more, never by reputable companies. I'm either having a colossally long run of bad luck, or there's something weird going on with these adapters.
Edit: Just spent 5 minutes trying to find this Ion unit for sale anywhere, including their own online store... no dice. I feel like the world is trolling me.