I took my rear deck off to see what kind of speakers were in my car and found out that my rear speakers were some junky 4". I have an extra pair of 6.5" Alpine type R speakers and tried to fit them in the rear speaker hole. They were too big. Obviously I would have to make the hole larger, but how would like effect the car in terms of rattles and things like that? I know that the rear 4" speakers are mounted in an enclosure and I assume that is for sound deadening. Would just mounting the 6.5 speakers directly on the deck be a mistake?

 

I wish i had more pix, but to sum it up i made custom housings for the 6x9s out of hard foam and silicone. Came out pretty good if i say so myself. This is the only pic i have with the rear deck cover removed.

 

They will fit If you bent the metal lip downward with some vice grips. It is a tight fit but it will work. I have the same 6 1/2 type r.

 

Here's what I did for my 6.5 in the rear. My buddy made an adapter plate to go over the stock hole. It was just big enough to lift/hold the speaker over the stock hole, but thin enough so that the stock deck would still go over it correctly.

 

don't mean to jack the thread
but has anyone ever fit 6x9"s in the back?

 

^^^ Check a couple posts up holmes.