Hi,

i'm not talking about the sound from the parking sensors, i'm talking about the alarm sound you get when the door is open and the headlights are on.

If the sound ist louder than the sound from the headlights on and door open this is the engine warning sound which comes from the instrument cluster. Normally you get this sound if your'e low on oil pressure. If everything is OK ith your engine and compressor you should check the wiring diagrams and oil pressure sensors and connections to them.

Regards
Markus