I'd be curious to see and hear what becomes of your research. I have a Y34 and like you I didn’t want the tpms re-installed in my new after market rims, but I was talked into it by my installer. It was the worst decision ever. I would get 22psi warning while driving and would pull over to check only to find that is was false and not to mention the layout of the reading on the dash display; no one knew the layout of the config to figure which tire was actually low in pressure. The damn dealer didnt even know.
The tpms system in after market rims (in my opinion) are the most in accurate devices ever, so I go them un-installed. I've been driving cars for years without a tpms and I’ve never had a problem, so....... I’m a firm believer in checking my pressure at-least once a week and so far so good. I did experience the tire pressure screen coming up reading "**" after every start and I was forced to press the "prev" button", but this only last a week and it finally went away. Keep me posted on your findings. My guess would be that you wont have to disable anything, but……… we will see. Good Luck
fyi,here was my question on that tpms layout exactly 3 years and like Szhosain said, "Not convenient"
zerothread?id=165227
Modified by CakeDaddy at 8:05 AM 3/14/2009