It seems that many people who upgraded their complete systems picked a 6.5 rear, and 6.5 component front.

Since the front is a 6x9, and the rear is 5.25 why did you guys go with a 6.5?

I understand going with a 6.5 in the rear as a bigger speaker will give you more bass, but mb quart makes a 6x9 component.

Instead of making mounting adaptors, wouldnt sticking with factory sizes mean a simple drop in place?

My head unit is being installed for me as they are only charging me 20 bucks labour to do it.

But for speakers/subs I was actually thinking of biuying a 4 chanell amp, power the front components, bridge the other 2 chanells for a sub.
There would be no rear speakers.

My sub would be mounted in a pre made box, strapped down to the utility track tie downs.

I almost never need the cargo space.

How do you guys feel about a 2 front/1 sub system as opposed to a front/rear/sub system?

Surprisingly, the sales guy at the electronics store suggested only using front speakers and a sub.

My previous car only had front speakers and a sub. I was happy with it.

Weird for them not to suggest buying more.

Anyway I was just curious as to why you picked 6.5 and dealt with the adaptor making process.