mbriex

My car is a lexus rx450h my 2010 european model.
The audio system is noML premium system with 12 loudspeakers.
The amplifier is a pioneer model under the rear seat (lexus part 86100-48160)
I'm looking for the shematics and wiring about this amplifier to improve my audio system.
Thanks for your help

Rozay604

iTrader: (1)

12V lt. green + radio, white 20 pin plug, pin 1 or white 28 pin plug, pin 14
Radio Ground brown - radio, white 20 pin plug, pin 20 or white 28 pin plug, pin 15
Radio Ignition yellow or gray + radio, white 20 pin plug, pin 11 or white 16 pin plug, pin 16
Radio Illumination green (parking lights), blue (dimmer) +,- radio, wht 20 pin plug, pins 2, 12 or wht 28 pin plug, pins 3, 17
Factory Amp Turn-on N/A posted_image posted_image
Power Antenna N/A posted_image posted_image
Left Front Speaker (+/-) white - red (mid and high); red - white (low) +,- amplifier, wh 10 pin plg, pins 1 and 5; wh 12 pin plg, pins 3 and 8
The amplifier is in the cargo compartment floor, behind the passenger side rear seat. On vehicles with navigation, the tweeter wires are in pins 3 and 9.
Right Front Speaker (+/-) purple - pink (mid and high); black - yellow (low) +,- amplifier, wh 10 pin plg, pins 2 and 6; wh 12 pin plg, pins 10and9
The amplifier is in the cargo compartment floor, behind the passenger side rear seat. On vehicles with navigation, the tweeter wires are in pins 4 and 10.
Left Rear Speaker (+/-) brown - green +,- amplifier, white 12 pin plug, pins 4 and 11
The amplifier is in the cargo compartment floor, behind the passenger side rear seat. The surround speaker wires are pink - purple at the amplifier, white 12 pin plug, pins 1 and 6.
Right Rear Speaker (+/-) yellow - blue +,- amplifier, white 12 pin plug, pins 5 and 12
The amplifier is in the cargo compartment floor, behind the passenger side rear seat. The surround speaker wires are lt. green - blue at the amplifier, white 12 pin plug, pins 2 and 7.
Center Channel (+/-) green - gray +,- amplifier, white 10 pin plug, pins 8 and 7
The amplifier is in the cargo compartment floor, behind the passenger side rear seat.
Subwoofer (+/-) black - red (1), yellow - green (2) +,- amplifier, white 10 pin plug, pins 1 and 5 (1), 2 and 6 (2)
The amplifier is in the cargo compartment floor, behind the passenger side rear seat.
Aux. Audio Input Left (+/-) black - red (common) +,- radio, white 20 pin plug, pins 17 and 16
On vehicles with navigation, they are at the radio, white 28 pin plug, pins 20 and 21.
Aux. Audio Input Right (+/-) white - red (common) +,- radio, white 20 pin plug, pins 15 and 16
On vehicles with navigation, they are at the radio, white 28 pin plug, pins 19 and 21.
RSE Video (+/-) brown - yellow (with navigation only) +,- navigation receiver, wht 22 pin plg, pins 4 and 14
The navigation receiver is below the radio.
RSE Audio Left (+/-) red - green (USB audio) +,- radio, black 12 pin plug, pins 4 and 5
On vehicles with navigation, they are red - black (common) at the navigation receiver, black 8 pin plug, pins 4 and 7. The navigation receiver is below the radio.
RSE Audio Right (+/-) black - white (USB audio) +,- radio, black 12 pin plug, pins 2 and 3
On vehicles with navigation, they are white - black (common) at the navigation receiver, black 8 pin plug, pins 3 and 7. The navigation receiver is below the radio.

mbriex

Thanks for your answer but I'm really a newbee in car electronics
I think your post is a copy/paste from an original text . It's difficult for me to understand the details of wiring without any image. I don't know what plug and pin your talk about so I can't for example guess what pin is + and - for right front and left front tweeter.
Any picture welcome

Rozay604

iTrader: (1)

Well if u explain what your trying to do maybe I can help u better. I've had a system in my old 2011 rx and I know that car quite well

mbriex

Thanks for your help. Here is my problem
I've replaced all pioneer speakers with Focal speakers. I've removed the subwoofer speaker replaced by a pioneer model with more power input that fits the sub box and add an amplifier to my subwoofer who really works better now.
I'm now trying to identify all speaker outputs and cables from my amplifier to add an external amplifier with more power to handle my new speakers better

mbriex

Does anybody has pictures of pioneer amplifier wiring to add an amplifier to my system?

Rozay604

iTrader: (1)

Get yourself a dsp.

Rozay604

iTrader: (1)

If u can't read that list for your factory amp then I recommend u hire an installer. I got that info from direct tech and only stereo shops have that info. It's actually really easy once u get to your factory amp which is located behind the passenger seat. The wiring colour is exactly what the factory amp shows. Hire an installer and get yourself a dsp as u will achieve a overall better sound and imaging