Hey guys im new to the forum. I just piked up a is300 y'day. I was going through trying to find the fsctory amp and came across a smp lookin thing in the boot under the carpet and the plastic thing. I diconnected one of the plugs from the thing and the driver side speaker stopped playing music. But when i unplugged the other plug it had no effect. But i was thinking that may have something to do with the navigation? Also is it possible to add a aftermarket double din to work in parallel with the navigation?
Your input would be great guys!
Cheers.