Need dock adapter for iPhone4

[pcc72]

I recently bought a dock radio with a iPhone 5/Lightning connection. However, I need an adapter to use an iPhone 4 on it. I had assumed that it would be easy to find an adapter, but at closer look all I can find is a Lightning>40 Pin adapter and not the other way around. Can anyone give me any advice or leads on a proper adapter?

 

[imj23]

ans

There is one shop that I used to use.
fruit-tuning or something like that.
They should have it if not i seen it on the web somewhere.

Regards,