Hopefully i can help..
Where exactly does the beeping noise come from in the car?
Do you a towbar fitted to it?
The beeping comes from the boot and yes we do have a tow bar fitted
Hi..there thanks for your reply..
Ok..by the sounds of your description id say it your towbar electrics causing that problem,it will be wired up to the rear lights/harness..they are fitted/included to whats like warning buzzer if the lights on the trailer had a fault..so in turn causing the sound your hearing to check the lights if a trailer/caravan was hooked up..the problem sometimes with these is they can get effected with moisture/water the electrics/plug at the towbar itself over time or non use etc..- wether it was proper installation or diy job this would be something to have checked out - you may want to check the the wiring yourself / the socket at the towbar..maybe spray in wd-40 into the pins to get rid of any water moisture.and then see if that helps..if it does then pack the socket with proper grease
to stop any further problems..also basically follow,check the loom from the towbar up to the rear lamps and check the connections the wiring for the towbar to the rear light harness is ok and not wet or corroded..there is also another option if you dont actually tow anything with the car..is to opt to get the towbar electrics disconnected.and that will stop that problem altogether..but you will still have the towbar itself but without the means of electrics..I do hope this helps..If you require to ask anything further then please continue before you rate