Jhcoz

2015 RX350, with NAV and sub. Not a Mark L system. I am finding differing listings for speaker sizes. In particular I am looking for the size of the mid-range in the front doors, but confirmation of all speakers would be great. Also, does anyone know the approximate output of the OEM amplifier? Thank you.

IntrinoX

iTrader: (1)

Crutchfield.com would be great for this. Did you try using their site?

Jhcoz

Yes. They and Sonicelectronics don't even acknowledge the mid-range. They show woofer and tweeter, but no MR.

Clutchless

Try some searches here using the term speaker or speakers.
Or just pull off the door panel and take a look.

MattRX

Dash speakers: 3.15”
Front tweeters: 3.15”
​​​​​​​Rear tweeters: 1-3/8”
Front door speakers: 6x9
Rear door speakers: 6.5”
Rear subwoofer: 8”

Edit:
For the door speakers, you will need Toyota adapter brackets to fit regular 6x9s. They also make brackets that let you run a 6.5" in the front doors. The rear doors just need a regular Toyota 6.5" adapter. For the rear subwoofer, it will take a minor amount of fab to get that to fit, but there are some great posts about it. 3.15" Toyota/Lexus speakers can be swapped for an aftermarket 3.5" from JBL or Infinity, etc without modification.