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thstone · 10-09-2019, 08:41 PM

Generally, you have to modify the rear speaker mount to fit 3.5" speakers. However, some owners just jam them in there and get them to work. Other owners remove the OEM mounting panel and replace it with a panel with a larger hole.

Rear Speakers : DIY Guide

10-09-2019, 08:41 PM	#2
thstone Certified Boxster Addict Join Date: Nov 2010 Location: Los Angeles Posts: 7,669	Generally, you have to modify the rear speaker mount to fit 3.5" speakers. However, some owners just jam them in there and get them to work. Other owners remove the OEM mounting panel and replace it with a panel with a larger hole. Rear Speakers : DIY Guide __________________ 1999 996 C2 - sold - bought back - sold for more 1997 Spec Boxster BSR #254 1979 911 SC POC Licensed DE/TT Instructor