I just bought the avic Z2. I have a 2001 GS 300, and some people/installers say that it would be hrd to install it into my car. Has any one installed the z2 in the gs 300. and if so tell some things to look out for. will i lose my sub?

no u wont loose your sub if you have the right installer take care of the job.

lmk if u need a dash kit or wire harness for your car.

I have Z1 installed on GS300. depending on the system you are having right now ( Pioneer, Nakamichi or Mark Levinson) you have to find the spec sheet for the amp.

for the dash kit, you can go to l-tunedparts.com to buy the OEM one for 45 dollars. It is match perfectly with the internal.

For the harness, there is no harness available for GS300 you can buy the harness for camry 86 and relocate the pin.

For more information you can you to clublexus.com/forums

Hope this help