You mentioned a previous problem with the rear dome. The clicking noise was probably the related to the dome lighting circuit and the comfort relay system that delays the dome lights from turning off for a few seconds after the doors are closed. The noise comes from under the dash right about where the driver's right knee would be.

Try taking the blub out of the rear dome and see if that fuse still blows. I suspect the short is still in the dome lighting system but it could be the radio too since it was replaced.

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1989 300E

2005 Acura TL

2011 Hyundai Elantra Limited

Swing hard! Take chances!