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How to convert an adapter which is using usb to bluetooth?

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Chriss:
Hi!
I'm curious doe this schematic is possible to convert in a way to use it with bluetooth instead of usb?
http://emmd.ro/wp-content/gallery/vag-com-usb/schematic.jpg

Is it possible to use something like the HC-05 or HC-06 BT module?

I'm thinking to take out the ftdi ic and the rx/tx line to hook up to the BT module, but I see there is the DCD and TRS line too and on the BT module I can't see any of them.

BTW. I already found another module where only the Rx & Tx pins are connected to the FT232 ic.
If I would interchange the FT232 with a BT module would that maybe work?
Maybe to take care about the voltage level on the Rx & Tx line on the FT232 to make it compatible with the HC-05 or HC-06 module.

What do you think, how could such of interface be converted from USB to BT?

Thanks for any suggestion or idea.

mvs:
K/L interface has custom baudrate of 10400 baud, so you will need to set up UART speed of BT module accordingly. Firmware of chinease modules like HC05 is very limited, i doubt that you can do it via AT commands. Perhaps you could set it via CSR Programmer and PSTool directly.
 

Chriss:
Thank you very much for this good suggestion.
I'm not limited to that china bt module.
Can you pls advice a good bt module what I coul use for such of experiment?
Thanks.

mvs:
Bluegiga (now Silabs) modules with iWRAP firmware like WT12-A-AI and Roving Networks RN41/42 (now Microchip) are quite good. Hardware in this modules is essentialy the same as in HC05, CSR BC04 Ext chipset.

rvalente:
Those simple and cheap elm327 bluetooth adapters are not suitable for you?

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