[ExiizZ]

I want to retrofit a combox telematics. In my Car I got the TCU 1.5 and MULF2. Do I have to replace the tcu 1.5 and MULF2 with the Combox Telematics and bridge the most? 


Or is is possible to replace only the tcu 1.5 with the combox telematics?

[SweetBMW]

need replace both, and bridge most

[ExiizZ]

need replace both, and bridge most

Tanks for zhe information. Is there a Pin-Out Plan for all 3 ECUS? And do I need any special connectors (I already got the most bridge connector and the Pin-Connector of the combox)