First of all, my new radio/cd does not have an out signal for display. So no radio/cd display on dash. Just the orange word "OFF".
If you want a radio/cd with display signal out, you must look for that capability when you buy it.
Only thing to do (for me now) is the steering remote. Which is very simple for Pioneer units with wired remote capability.
Just few resistors soldered between wires of 10 pin connector (models prior 2000 I think !?!?!?!).
I did not have the original car stereo and do not know what function have the wheel (molette) on the back of the remote?
also "Buton bas"
??
This is what I have.
Notice : there is just one button in the upper part of remote.
Newer versions look like this, with two buttons in the upper part. Notice the new type of connector (yellow)