Mr Sinter replied to RonS's topic in Hacks/ModsJust signed up to AVIC411 ... WOW, talk about easy ! Just got back from a trip OS (3 months), I disconnected the battery as the immobilizer tends to drain the battery. Didn't think about the radio ... re-connected the battery, and ERRR ... radio needs code. As I bought the car 2nd hand, I didn't have the code (and not in any of the doc's that came with the car). Google brought me here - did the small SD card thing, and BINGO ! - radio back on ! - SO EASY TO DO - MANY THANKS !!!!!