SD USB AUX Input on a V8 260?
 

I have been working with a customer on the diagnostic stuff and he has asked me to look at CD Changer replacement.

His CD changer is dead. It has power because you can eject/insert the cartridge, but on the head unit it says "no disc" or something to that effect.

Being a V8 the CD changer is in the spare wheel well.

Also the car has satnav.

Can anyone tell me whether this thing
http://www.ebay.co.uk/itm/141975967161
will work on his V8?

Also is it likely to kill the satnav?

Also the headunit has a cassette player if that matters....