Review on 🔊 Enhance Your Honda Accord's Audio: Xscorpion HSA-6554 Speaker Adapter for 2003-up Models (Pair) by Kevin Hutchison

Some reviewers say they don't work with 6.5" speakers - that's partly wrong. They work with 6.5 inch speakers with an installation width (hole to hole) of about 145 cm. It seems that most high-end 6.5" speakers are trying to get closer to the 6.75" mounting dimensions, including most JBLs, Infinity, etc. Most Pioneer 6.5" speakers should fit (except for the 4-way TS-A series, which use Alpine J-series speakers will also fit (although their more expensive speakers won't). So yes, you can fit 6.5" speakers, places However, make sure the hole diameter is small enough.