Hello, i have a 2013 RX450h and want to upgrade the soundsystem. Want to start with adding an amp to the 9 speaker factory system. I would like to know if the radio has a 4 channel output that goes into the amp and that the amp powers the 9 speakers seperatly. I had this in my BMW e46 with Harman Kardon system. The amp is more like a crossover for the 11 speaker. In that case i put my amp between the headunit and amp. I want to know if i can use this method on the RX.

 

Try some searching as this has been asked about and discussed more than a few times. Just use simple terms like amplifier, or audio

You may also want to look at the audio forum
​​​​​​https://www.clublexus.com/forums/lex...lectronics-12/

See what Crutchfield says will fit as they do the research and sell a lot of stuff https://www.crutchfield.com/S-GARLaVFEOPZ/

The best for last, see what this guy installed in his 2013 RX
https://www.clublexus.com/forums/rx-...installed.html

 

I replaced ours 2011 RX 350 with these:

Focal 165 V30 (2 pairs front)
Focal 165 A1 (2 pairs rear)
ARC10 sub
ARC KS300.4
JL JX500
JL Audio CL441dsp.

The only down side is I lost the built-in bluetooth connection but I bought an external bluetooth connector and plugged it on the aux.

 

Speaker swaps are theoretically easy swaps, but when an active component is replaced a lot more needs to be investigated. Are signal levels in 3rd gen RX standard? First gen and other Lexus models [the ones I have dealt with] have non standard signals .... dual differential [l+, l-, r+, r- (where - are not ground)] and the amplitude is almost twice. Also the communication between active components is thru a serial communication link. Please share your findings.

Salim