Although the 140 is a great head unit, only having 1 USB port (and then having to dedicate that port to an ipod/ipad/itouch) has always been a sore spot with me. I've seen people posting about hubs and people struggling with boot order and all that. but I don't want something that is going to be a hassle every time I restart the car...
so I posted on toms hardware looking for a usb switch (without knowing if such a device even existed).. something that I could put multiple usb storage devices into, but only have 1 output at a time. I assumed this would satisfy the z140..
http://www.tomshardware.com/answers/id-1724273/usb-switcher-multiple-storage-devices.html#11170925
eventually I found my own solution in a Kramer VS-41USB 4x1 USB Switcher
but this is cost prohibitive just to test (and certainly more than I thought it ever could be especially compared to standard hubs), although I would be willing to fork out the $200+ if it would work.
if this does work, this unit could easily mount in the dash with a new oversized (fit to the dash) custom faceplate/bezel that could be made to include a pair of flush mount usb ports, an SD reader (yeah I know there is an sd reader in the 140 already, but why not?) and still have the functionality of my ipod at the touch of a button rather than digging through my glove compartment to disconnect and reconnect devices at 65-70mph...
anyone try something like this? any feedback?