i got that sound; now i know what it is!
my car was being fixed(bad oil sensor, cpo) and my SA brings me my paperwork and says the mechanic was overzealous; paper has a list of things needing attention, one of which was the rear shock mounts. the parts guy said a lot of times the techs go off the computer to see what has/hasn't been done-if it hasn't they recommend it: battery(original), plugs(i did them) and mounts.
thanks for the info.
DINAN CAI, 3.46 DIFF, CDV DELETE,DINAN S2 & EXHAUST,HARDTOP,f/14 wheels