Mille Miglia "Great 1000 mile rally 2" Help with steering ..

I have a 1000 mile rally machine in an old Pole position sit down cab.
This config works great.
I have recently purchased the PCB for great 1000 mile rally 2 as an
upgrade for this cab. however the steering wheel when conected to any
of the contact/jacks does not show up in the tests nor does it work. I
have searched for a manual for this PCB but have come up empty handed.

Question is does anyone have a copy of this Manual or advice as to how
to make this PCB work. Also would like to know how to make it FREE
play.

P.S. it does run and the sound works gas pedal works.

Update: I found dip switch settings that work for my cab. However I
still need to know if a free play option is available before I mod the
cab further to alow for a credit switch. Please let me know if there is
such an option.

Thanks
Balooga