problem with carkit

[3dre]

Hi yall,

I just installed my Parrot evolution 3000 carkit.
I bounded it with my mda compact, but if i want to make a call or accept a call, I can hear the other person but he can't hear me.
The carkit is fine, other phones with bluetooth work well.

Is there a solution?

I use ma_dt_wwe_DutchRetail_11200_550_11200_ship rom

Thanks in advance