06LexIS350

Does anyone know if it will be possible to retro-fit a stock IS350 with the base audio system that has Nav to the ML with Nav?

It should be as easy as just changing out the speakers, the amp and the CD changer. The faceplates and Nav should stay the same.

I think that would be a great thing for the dealer to offer to us that had to get the car with out the system since it didn't ship on time.

Has anyone heard?

berg7445

there was a detailed post a while back about how this would not be feasible. Here is one link . . .

https://www.clublexus.com/forums/sho...light=levinson

there is another one that is highly detailed about the wiriing and such but I could not find it.

shaolin

iTrader: (2)

i would like to know this too..

since i like the stock sound system already, maybe i can just get the oem dvd player replaced..

dainese954

iTrader: (1)

could i just switch out the unit with a navi and call it a day is our cars prewired for navi system? thanks

rominl

iTrader: (4)

nop not even closed. nav screen, unit, harness, it will cost you a lot

cmusic

The wiring harness for the Nav and ML is completely different than for a non-nav and non-ML ISs. There is a harness diagram in the service manual that shows where every wiring harness in the car goes. To change out a base system to Nav and ML would require the entire interior removed, including the dashboard. This is because the wiring harness in the dash goes throughout the whole car to the other parts of the system located in the trunk and other areas of the car.

06LexIS350

I have Nav already...I just want to add the ML

That shouldn't require a new harness since I have nav already? or does it?

S2000toIS350

How about this option.

Take your car to Sound in Motion on Brighton Ave (these folks are the real deal).

They will have your car sounding better than that ML set up and probably for less money.

The meaningful (to some folks) thing you won't have is the ability to play DVDs on the Nav screen.

flipside909

It's not an aftermarket add on. You're better off going with a different aftermarket brand of speakers and amplifier. You still will not be able to view or listen to DVD Video/Audio unfortunately.

rominl

iTrader: (4)

trust me it's not as easy as you thought. the systems on the lexus cars with nav/ML are not that simple