Lexus es300 wiring diagram?

You say...Lexus ES300 stereo....then you say aftermarket butchered up stereo.................whitch is it?

Listen Man......I'm NOT an ass.........I just want to help!

Tell me what the head unit is, and the amp, AND any pieces in between!      K

KarTuneMan:

I really appreciate your trying to help - ok here is the scenario in full. I bought the car a few weeks ago and the previous owner installed a Sony xplod headunit, 10 disc cd change (also sony), a 500 watt amp, capacitor-thinger, two gianormous subwoofers and all new eclipse speakers within the car itself. I personally didn't need all that stereo so I sold off the amp, subwoofers & capacitor-thinger. HOWEVER, when I went to hook the head unit back up to the speakers in the car using the Lexus amp located under the passenger seat the moron who installed the last system had thwarted that amp using monster cables directly to the amp in the trunk and rather than just taping up the wires on the stock amp he cut them to less than a 1/4 inch long.  Thankfully we were able to soder wiring together (don't even get me started on the insanity of that freaking process) to get the harness working again. Which by the way for anyone who cares, replacing that harness through Lexus is $856. Insane. Aaaaaanyway, now for whatever reason the right side front and rear speakers are working but we can't get the left side mid's to work, only the tweeter is producing sound. Thus my reason for asking if anyone has the factory amp wire codes & harness info so maybe I can trace it backwards from the jumbled up job the previous owner did and attempt to decipher his wire codes. Sound like fun yet???

The wires to the sreakers are in pairs.

RED / White

BLACK / YELLOW

Blue/Green

Pink/Purple

As far a polarity I dont remember, I just use a polarity tester.  As far as the input side, just run speaker wires from your deck to the output side of the amp.  Use a 9v battery to "pop" the speakers to tell wich wire goes to wich speaker. 

Hope this info helps.

Bryan

Bryan:

THANK YOU! That actually does help me out - only I am still kinda stuck because there are two different sets of BLACK / YELLOW and Pink/Purple Wires?? Would the 9v battery do any damage to the crossovers?

There is a harness you can buy that plugs in the dash giving you both front and rear rca inputs to the factory amp. If you look behind the right kick panel there are 4 wires for the 6 1/2" speaker its red + and white - for the super tweeter its blue+ and green - now if you look behind the kick panel on the left side for the 6 1/2" speaker its yellow - and black + for the super tweeter its pink - and purple +. Note the super tweeter is hooked up in parallel with the 3" dash speakers. However if your factory wires are destroyed you should run all new wires. If the plugs were cut off and thrown away then a wireing diagram won't help you. The factory amp sucks anyway. Buy a small four channel amp and replace the stock one and run all new wires. Run the wires down the center console. You probably should take the passenger seat out to make it easyer.