Like the Fit's radio. Don't like any aftermarkets less than about $350 and even they don't have some of the features the factory radio has like dimming lights, Radio Data System (RDS), Speed Volume Control (VSC), LCD (vs LED) display), rear USB (well after this upgrade) not to mention the ergonomic design.

Picked up the USB kit from College Hills Honda for about $160 including shipping. Yeah I know I could've bought an alpine single din with bluetooth for that. I put one of those in my wife's car and don't like it as much as base Fit's radio (except for the USB, but it's on the front).

Went in easily. Hardest part was judging how much force to use removing the old head. Only did minor damage to my knuckles.

Complete pics here (they're pretty self explanatory, and the instructions on PDF from College Hills were great).

 

I finally got around to pulling out the stock USB cable today. I left it in when I installed an aftermarket head unit, I just shoved it behind the glove box.

 

Any chance you still have the cable and associated control box and would be willing to sell them?