Originally Posted by Rexx6.0
Don't know if its high or low level inputs... I simply ran the wire harness that came with it to the back of my headunit, it T's right into the main input plug... unplug the factory one, plug in to the bazooka harness, then plug the bazooka harness into the headunit, then plug in the blue remote wire hookup to the blue "Remote 2" plug, and it works...
I will try finding a different/better ground and see if this helps get rid of the weird noise at startup and shutdown.
My apologies, the Scion xB is a direct plug and play harness so there are no Low Level Inputs. Be sure to check your ground, that should solve your issues.