Have a 2019 RX350 9 speaker system. Came from 2 RX's that had a 12 speaker system.
The 9 speaker system doesn't sound good.
Any ideas on how to remedy the situation? What can I do to make it sound like my previous 12 speaker sysem?

 

Here are a couple of part and location guides for the RX. It appears that the systems differ in
the 9 speaker set up has three (3) 2.7" front tweeters and no subwoofer while the 12 speaker
array has five (5) 3.5" front units and the 7.8" woofer in back.
Perhaps www.crutchfield.com can help with this?

 

Very nice! I appreciate the feedback. How did you find this? I suppose on the 12 speaker system on the Word doc you sent, this is the sub-woofer?
Do you know if a dealer would do this for a fee (change from 9 to 12 including the woofer. Or maybe I should go to Best Buy, I've dealt with them in the past with good luck.
A higher end place I checked with wanted about $750 just for the front speakers?!
What a sound snob I've turned out to be, got spoiled with 12 speaker system.

 

Perhaps the subwoofer out of a recycling yard from a wrecked RX? The nice thing about the
factory setup is that it takes up no room. I enjoy hearing a nice aftermarket sub but gotta wonder
when you open the trunk and see...subwoofer and nothing else will fit.

The diagrams and part information is from the Toyota/Lexus Tech Info System,
I am a Master Lexus Technology Specialist (whew!) but you can apparently subscribe
to get into these tech information screens.

 

I have a RX350 with 9 speaker system, do the OEM subwoofer from the 12 speaker system plug and play? or I have to modify the wires? Thank you

 

do you know if the wiring will be there to add a factory sub? Is there wiring pre existing or can it be tapped into the factory amp for those of us with the 9 speaker system? Thank you.

 

Thanks for the feedback.
I fixed all this and have since bought a new model with all the bells and whistles including the premium sound. :-)