D.C.GS430

iTrader: (1)

OK today I went in to my local car audio shop to purchase me the new Pioneer Avic Z1. And the installer inform me that it would not work in my 2001 Lexus GS430. Unless I change out everything I would have to replace my factory door speakers and my factory sub and install a new amp, speakers, new sub. Because they say that the unit wont play through my factory stuff . And my other option is they will have to do a amp bypass. Has anybody else hear of this before or are they trying to get more money out of me? If anybody on here has this unit please tell me what I need to do thanks

B.Diddy

iTrader: (1)

This has been extensively covered on the IS300 forums. Your stock headunit and Amp are working as a team to produce sound. remove one or the other from the equation, and you will have a degraded sound output with aftermarket audio components.

I just installed the Z1 myself and I opted for new door and deck speakers and an external amp.


The shop is technically correct. its just a matter of how much they wanna charge you from this point on. (parts and labor of course)

corkycal

iTrader: (8)

that's a nice headunit. you really should replace all speakers and run external amps to get the most out of the new h/u.

the stock stuff just doesn't cut it.

jtgs400

iTrader: (1)

It's certainly do-able but a bigger hassle for the shop as they need to trace all the wirings of the stock system to integrate the new HU. At the end you'll have a great HU but still stock sound quality. They can also bypass the stock amp but you still have a problem with the stock speakers being 2 ohms and also no channel to power the sub.

Lexbox

The head unit will be able to handle running 2ohm stereo The stereo shop kind of lied to you though. The AVIC-Z1 has a built in amp to power your speakers, they only have to run speaker wire to where the amp was and it will be fine. If you need help just PM me

D.C.GS430

iTrader: (1)

Thanks Lexbox I will pm you if and when I need your help thanks again

GSspeed

this is interesting, Im in the market of getting the Z1 aswell, and i have the nakamichi hu, so will i encounter more problems regarding stock speaker application with the Z1.