was poking around on a forum and found a random file someone had posted that claimed to have a launch control and map switching, i looked through it and didnt find any major brand name or tuner in it so i figured id share it for everyone trying to crack the MED9 mystery. i did a little bit of poking around in IDA with it and i think i have deciphered the launch control code from the map switching code.
Entry to the code i think is launch control
ROM:00596E08 # ---------------------------------------------------------------------------
ROM:00596E08
ROM:00596E08 loc_596E08: # CODE XREF: sub_4C62A4:loc_4C6350j
ROM:00596E08 lis r12, 0x19 # 0x196848 # Load Immediate Shifted
ROM:00596E0C addi r12, r12, 0x6848 # 0x196848 # Add Immediate
ROM:00596E10 lbz r12, 0(r12) # Load Byte and Zero
ROM:00596E14 andi. r12, r12, 1 # AND Immediate
ROM:00596E18 cmpwi r12, 1 # Compare Word Immediate
ROM:00596E1C beq loc_596E54 # Branch if equal
ROM:00596E20 lis r12, 0x19 # 0x196848 # Load Immediate Shifted
ROM:00596E24 addi r12, r12, 0x6848 # 0x196848 # Add Immediate
ROM:00596E28 lbz r12, 0(r12) # Load Byte and Zero
ROM:00596E2C andi. r12, r12, 2 # AND Immediate
ROM:00596E30 cmpwi r12, 2 # Compare Word Immediate
ROM:00596E34 beq loc_596E64 # Branch if equal
ROM:00596E38 lis r12, 0x19 # 0x196848 # Load Immediate Shifted
ROM:00596E3C addi r12, r12, 0x6848 # 0x196848 # Add Immediate
ROM:00596E40 lbz r12, 0(r12) # Load Byte and Zero
ROM:00596E44 andi. r12, r12, 4 # AND Immediate
ROM:00596E48 cmpwi r12, 4 # Compare Word Immediate
ROM:00596E4C beq loc_596E74 # Branch if equal
ROM:00596E50 b loc_596DF8 # Branch
ROM:00596E54 # ---------------------------------------------------------------------------
ROM:00596E54
ROM:00596E54 loc_596E54: # CODE XREF: sub_4C62A4+D0B78j
ROM:00596E54 lbz r12, byte_7FD667 # Load Byte and Zero
ROM:00596E58 cmpwi r12, 2 # Compare Word Immediate
ROM:00596E5C beq Custom_code06 # Branch if equal
ROM:00596E60 b loc_596DF8 # Branch
ROM:00596E64 # ---------------------------------------------------------------------------
ROM:00596E64
ROM:00596E64 loc_596E64: # CODE XREF: sub_4C62A4+D0B90j
ROM:00596E64 lbz r12, byte_7FD667 # Load Byte and Zero
ROM:00596E68 cmpwi r12, 1 # Compare Word Immediate
ROM:00596E6C beq Custom_code06 # Branch if equal
ROM:00596E70 b loc_596DF8 # Branch
ROM:00596E74 # ---------------------------------------------------------------------------
ROM:00596E74
ROM:00596E74 loc_596E74: # CODE XREF: sub_4C62A4+D0BA8j
ROM:00596E74 lbz r12, byte_7FD667 # Load Byte and Zero
ROM:00596E78 cmpwi r12, 0 # Compare Word Immediate
ROM:00596E7C beq Custom_code06 # Branch if equal
ROM:00596E80 b loc_596DF8 # Branch
ROM:00596E80 # END OF FUNCTION CHUNK FOR sub_4C62A4
ROM:00596E80 # ---------------------------------------------------------------------------
Second Part of this code
ROM:00596DB0 # ---------------------------------------------------------------------------
ROM:00596DB0 Start Of Launch Control????
ROM:00596DB0 # START OF FUNCTION CHUNK FOR sub_4C62A4
ROM:00596DB0
ROM:00596DB0 Custom_code06: # CODE XREF: sub_4C62A4+D0BB8j
ROM:00596DB0 # sub_4C62A4+D0BC8j ...
ROM:00596DB0 lbz r12, vfzg # Load Byte and Zero
ROM:00596DB4 cmpwi r12, 8 # Compare Word Immediate
ROM:00596DB8 bge loc_596DF8 # Branch if greater than or equal
ROM:00596DBC lbz r12, nmot # Load Byte and Zero
ROM:00596DC0 cmpwi r12, 0x51 # Compare Word Immediate
ROM:00596DC4 ble loc_596DF8 # Branch if less than or equal
ROM:00596DC8 lbz r12, Wped # Load Byte and Zero
ROM:00596DCC cmpwi r12, 0x26 # Compare Word Immediate
ROM:00596DD0 ble loc_596DF8 # Branch if less than or equal
ROM:00596DD4 lbz r12, B_kuppl # Load Byte and Zero
ROM:00596DD8 cmpwi r12, 1 # Compare Word Immediate
ROM:00596DDC bne loc_596DF8 # Branch if not equal
ROM:00596DE0 li r12, 1 # Load Immediate
ROM:00596DE4 stb r12, byte_807005 # Store Byte
ROM:00596DE8 li r30, 0xDF # Load Immediate
ROM:00596DEC li r31, 0xDF # Load Immediate
ROM:00596DF0 stb r30, byte_7FEDE0 # Store Byte
ROM:00596DF4 b loc_4C6354 # Branch
ROM:00596DF8 # ---------------------------------------------------------------------------
ROM:00596DF8
ROM:00596DF8 loc_596DF8: # CODE XREF: sub_4C62A4+D0B14j
ROM:00596DF8 # sub_4C62A4+D0B20j ...
ROM:00596DF8 li r12, 0 # Load Immediate
ROM:00596DFC stb r12, byte_807005 # Store Byte
ROM:00596E00 stb r30, byte_7FEDE0 # Store Byte
ROM:00596E04 b loc_4C6354 # Branch
ROM:00596E08 # ---------------------------------------------------------------------------
Attached are the BIN file i found. have fun guys and enjoy!