I'm about to order speakers for my 2006 wrx tr. I have looked at crutchfield, and have decided to go with shallow 6.5" speakers in the front. However, I did a search and it looks like people are putting 5.25" 's in the rear. I'm pretty sure the stock rear size on the TR is a 4" and crutchfield has it listed as a 4" also. When I spoke with a rep. about getting larger speakers (5.25s) in the rear, he said they didn't have mounting brackets for them. Could I just ask that they provide me with the front door mounting brackets for 5.25"s and use them on the rear door. Anyone who has done a TR setup, your help is more than welcome!