My'89 560SL has a chirping from the central dash on road irregularities (bump-chirp-bump-chirp etc) but mostly during deceleration, more with braking. Before tearing into it blindly, does anyone know the "usual suspects" for this issue? Looseness in the heater blower? Windshield mount? Something buried deep in the dash requiring either dozens of hours or hundreds of $ to fix? All hypotheses welcomed---TIA

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Craig Bethune

'97 SL500, 40th anniversary edition

'04 Olds Bravada (SWMBO's)
'06 Lexus ES330
'89 560SL (sold)


SL--Anything else is just a Mercedes.
(Kudos to whoever said it first)