Any memory or radio code issues? Is it necessary to plug a power source in during the swap? Mercedes was always a pain that way.

 

Thereshouldn't be a code problem

 

lexus did away with radio codes i believe in 94.. ish.. you may loose memory seat / mirror positions, radio stations, clock time, and seat full travel memory ( depending on year ). other models can loose passenger window controll and require re programming of those windows and sunroof.