i have a CM5908, i think they were OEM on the cabs. i only purchased it because the original unit in the car wasnt working, but after troubleshooting it i got it working so i never installed the cm5908. I have put power to it and it does work (lights/LED light up) but never actually installed it, i recieved code from maranello but never tried it. if your interested, pm me.
'You don't buy all that jewellery and stick it on an ugly person.'