A quick tip for anyone who wants a portable radio for their van and doesn't use mains hookup - I've just bought a Roberts Sound 80 secondhand on Ebay, it sounds great but the main reason for buying was because it runs on 12 volt. As standard it comes with one of those ugly transformer plugs for a normal domestic 240 volt socket, but for a motorhome it's great as the output from that is 12v DC - most of the others I looked at were 9 volt. I had an old lead from a rechargeable camping torch that plugs into a cigarette lighter socket that fits the radio with a minor adaption - I had to open up the hole in the middle of the plug fractionally with 2.5mm drill bit. You can buy those leads cheaply on Ebay. I've got a cigarette lighter type accessory socket in the van in a good location, the radio works just fine with that. One of these days I'll get around to fitting a better radio in the cab and wiring speakers in somewhere in the back, but in the meantime this will do nicely.