My advice, just tape the pin switch for the door down when you are doign what you are doing, or just wire the buzzer up to a toggle switch. Then you can disengage it at will.
how about checking a local electronics store for some other buzzers you can use... hehe
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.