in the REAR doors. Crutchfield says the EX368 fit in the fronts no problem, but are too deep for the rear doors and need a shim or spacer to make them work. Is this the case? Please advise.

 

If Crutchfield said you need spacers or shims, you will. Over the years I have used them numerous times and their service and information has always been top notch. They might even supply the shims for free. Hope this helps...