Coding out warning gong for e93 roof?

So I've bought an e93 with a roof issue. it's stuck up and completely secure, but a sensor has failed so the car thinks it's not on properly when it is. I'm getting a warning gong that plays whenever I start driving. I tried looking through the codes to get rid of this (just the noise in the very least, though coding out the warning itself would be great) but had no luck. Anyone know what to look for? Cheers!