Default [Q] Change bluetooth stack on 12.1.A.1.201

Hello,

My SP cannot connect to my Opel NAVI SD900 (gps + bluetooth handsfree) since the upgrade to JB 4.3 (266 or 201), everything was working fine with firmware 12.0.A.2.254.

There is no update by Opel for their Navi system and I don't want to return to 12.0.A.2.254, because the bugs on the WIFI.

I'm now running the firmware from Dipesh1502 (http://forum.xda-developers.com/show....php?t=2704312) and my question is:

There is a way to have the bluetooth stack from the JB 4.1.2 running on a JB 4.3?

Thanks in advance,
Marty