There is
an old thread about that, from 2010. For the sake of convenience, here is what Sikboy1029 wrote then:
Since GOG won't put an article up about this
The registry key I changed was located at:
My Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Codemasters\Insane
It's name: Control1
My unchanged values for turning with the left stick (axis U):
0000 01 00 00 00 00 00 00 00
0008 03 00 00 00 01 00 00 00
0010 FF FF FF FF 00 00 00 00
0018 00 00 00 00 01 00 00 00
0020 00 00 00 00 00 00 00 00
0028 00 00 00 00 FF FF FF FF
0030 01 00 00 00 00 00 00 00
0038 01 00 00 00 00 00 00 00
0040 00 00 00 00 00 00 00 00
The first lines seem to hold the info for the steering and the info seems to be grouped in 32bit (4 hexadecimal pairs). Anyway on the line 0008 I changed the value 01 to 00:
0008 03 00 00 00 00 00 00 00
When I changed this value I could turn left and right with my left stick. If you change the left/right steering control in the game it will reset the value to 01.
In short,
1nsane gets unfortunately cranky with controllers, including racing wheels. However, by fiddling with the registry keys using Registry Editor (or RegEdit), it is possible to bind the steering and pedal inputs to the controller. You just need to keep in mind that the key values will reset if you change the controls inside the game. You will probably need to create a .reg file to avoid going through the hassle of reconfiguring the controls.
