sorry, couldn't find a thread, but here's what I'm was talking about....
AUX-In iPod Charging Cable for CR/CDR-220
The one from Becker is just an Aux in that terminates into RCAs. You'd then have to run a 3.5mm to RCA adapter from your iPod to the Becker piece. However, it won't provide charging like the one pictured above.
Good luck