It seems to be a secret how to build an adaptor cable to connect the Logitech G27/G29 (maybe G25) pedals to a Thrustmaster TX/T300 (T500) Base.

The cable has only been tested with stock G27/G29 pedals and not with any mod such as a load cell. Use at your own risk!

I did the research on my own and here you will find the pinout to build an adaptorcable.

What you need:

- DB 9 Female connector

- RJ12 Connector with asymmetrical lock (I used an old fully connected Telekom Splitter Cable)

- Cable with 6 wires

Please note that Thrustmasterpedals use 12 kOhms potentiometers on the brake as well as the gaspedals where as Logitech use 10 kOhms on clutch-,brake- and gaspedals.

The cable does not need any resistors or electronical components.