hey guys I hust got myself a written off 5 speed ba xr6 for a donor vehicle. its been sitting with a flat battery for a good 8 months, I put a new battery in but no luck. my radio is showing CODE with ign on ( as soon as you turn ign on it should talk to bcm and power up ) there is no crank, a few of the dash lights drop out as normal on crank but the little hand with the key and the red (!) flash up, im guessing dead bcm but im just guessing. I have a snap-on ETHOS scan tool but its pretty much useless for anything bigger than resetting seatbelt and airbag codes. any help would be great. I want to have a quick drive to make sure sure everything works ok