I got my Riocar from carplayers.com so it came with a US two pin adapter, no good for the UK obviously. I found a 12V 2.5A supply in the junk cupboard made by "BesTec" - it's very cheap, I have had belts of both ends (the jack during operation and the plug end just after unplugging it). I soon found another one that was used with a Sceptre flat panel display and it is slightly better. The shocks weren't bad but it makes your wrist ache after a couple in a row!

Gareth