I will answer the last two...
The MP3 CD did not work. CD player looked at it and spit it out. So much for that. Wish they had made it compatible. Between XM and the Sansa, I think I have enough music for and hour of so...
The jack you see next to the aux input is a second charging jack. Then there is a hole under the upper tray to route cabling through. Also there is an indent in the front of the bins so you can route out cabling and still close the lids. Very nice.
Will take a closeup later and post...
Got to go wipe the dew off of the car. I am readying a garage for it, so no more outdoor nights and dirty clean cars in the AM or winter frost or snow.
Rog