Phone options

I was wondering about a couple of options, other than the full out MB system, which is extremely costly:
1. If you only want bluetooth connection could you buy selected parts, avoiding the portions such as Voice Command, Linear Compensator, Push to talk lever, antenna splitter? It seems that these would not be necessary to have simple bluetooth capability. Then you would need (1) MHI Control Module, (2) MOST Adapter Cable and (3) contact plate.
or
2. Is there a method for using the built in Teleaid system as interface?



