The speaker size in the 2005 sienna iS6-1/2" front door. You will come into problems with the sound. This could be from the stereo's speakers or a phone that is connected to the vehicle. Whatever the source, You will need to have these issues solved quickly. If the nuisances are coming from the phone, it could be that the software won't update at all, the device won't sync with the vehicle, the phone's battery is near empty, or something is interfering with the signal. If the problems are coming from the stereo's speakers, it may be static sounds, randomly turns off, a loose wire, or a blown fuse.
Mark Standley
August 28, 2020
The front are 6x9 and the rear are 6-1/2
Philip E.
April 9, 2020
The 2005 toyota sienna uses 6-1/2" speakers in the front doors and 6x9" in the rear.
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