I'm thinking of upgrading my 2007 Tundra SR5 DC 5.7,4WD,single CD six speaker sound system-does any one know the size FOR SURE of the speakers in the dash,front door and back door. For what its worth,my upgrade is getting slowed down by no mounting kit available yet for the CD player(pioneer Premier DEH-P780MP CD MP3 Car CD capable of luscious organic orange swirling faceplate to match the other lighting in the cab)...though I guess Metra may have one out in 1-2 weeks according to my sound guy...If anyone knows differently,let me know. I'm also consideringMB Quart RCE6x9 component speakers in the front door with the accompaning tweeters in the dash,JBL P652S 6-1/2" 2 way shallow mount speakers with adjustable directional tweeters,and since room is so shallow under the seats,I'm considering getting the Sony XS-LB10S subwoofer with enclosure-a 350W RMS 10" sub loaded in a box that I could mount under the the left rear seat facing up(Depth about <7" at the front of the enclsure and 6" at the rear)...it should fit. What do you think? A nd if any one knows about those speaker sizes...let me know. Thanks... Peace...DAcat