has anyone replace there rear factory speakers in there wagon as there in the roof and i took them out and went to autobarn to have a 16yr old tell me that i have to use two spacers pre speaker or cut into the side interior pannels and use a pair of spacers and have 6x9s:gtfo:.

I've got 6 X 9s on spacers in the back of my TS wagon, I didn't bother to try the top install. Sounds reasonable, improvement on just having dash speakers. The original top speakers are very shallow IIRC, good luck trying to match them.

I got 6.5's in the spots where the old ones came out of. No modification needed, just the screws went in on a bit of an angle but they were fairly shallow pioneer things. I didn't notice that much of a difference in sound, only when sitting in the back seats. The 4's in the dash get loud enough to drown out the rears when in the front seat. Maybe it's more beneficial to place some decent splits in the doors and chase a nice front stage.