I am a recent owner of a 2005 S Type 4.2 with 94500 mi. on it and loving the car but it is not perfect. One somewhat annoying feature is the solid sound when in reverse, no pulsing, most of the time. Once in a while it is silent but not very often. I found the Parking Aid Control Module in the trunk and tempted to unplug one or all of the connectors. Are there any better options to solving this myself?
Dennis

 

I would look in the JTIS (Free on this site) and read up on troubleshooting that item.
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One or more of the sensors 'thinks' there's something very close by. JTIS shows how to isolate and test them.

 

I appreciate the help. I found a couple of old threads on the topic to test each sensor plus a pdf to remove the sensors if needed.
Dennis