ipod question - any experts?

Not so much as Mechanical but more a Technical question.

I have just inherited my daughter's ipod touch (she gets a new iphone and I get her ipod.. you can see who got the better deal)

I have never had an ipod or iphone before, only mp3 players. I have given up as they all pack in for one reason or another.

I have a hifi in the motorhome which has line in (being used for the TV/SAT) It also has a USB port on the front which is meant to be used for a pen drive to play movies etc. It has no AUX socket

My question is, can an ipod be played to the USB socket to get music through the speakers? Is it possible to back play the music on an ipod throught the charge / sync cable or is it only possible through the headphones socket?

I hope this is clear.

Any Bose portables?

Is that the one with "excellete condition & excellete sound" ?

Saw that.. but not keen on a second hand one..

not with electronic gear

Bose ain't it's all cracked up to be anyhow. Processed fake sound, ask any Audiophile

The gear4's are real good, they are refurbished shop returns(most never even used), an idea on price... Gear4 sell one for £89.99, I have it for sale at £15

Have various different sizes.