i need and M6 to A3 (th350) write-up
if some has a link to a write up, or a sticky on this, i would appreciate it.
personal experience is also VERY welcome.
-jeff
Get a wiring diagram to begin with, Haynes manual will be fine. The new 3spd shifter will need micro switches and just wire it up. OR for the N switch, you can just jump it and it will start the car in any gear, may not be a wise thing but easy!
Swap out the M6 pedals for A4 pedals, get a flywheel.
Decide what Torq Arm you are going to use. I like to get the TA off the trans, then just add some material to the A4 crossmember and get a TH350 with a 9" tailshaft or get a new DS. I like the Madman dipstick tube specific for the trans you get.


