Toyota Aftermarket Power Antenna Wiring Diagram. On the aftermarket harness there is the blue one that connects to the aftermarket radio and then there is a blue loop that goes from the remotepower antenna wire back in to the connector next to it which then goes to the pinkblue. I know my aftermarket radio worked with the power antenna.
If you have all the proper wiring harness you will salvage everything. On the aftermarket harness there is the blue one that connects to the aftermarket radio and then there is a blue loop that goes from the remotepower antenna wire back in to the connector next to it which then goes to the pinkblue. Draw in blue the part of the circuit that is common to both the control and load horn circuit.
Most aftermarket head units have a single trigger lead for amplifier turn on and antenna trigger.
Thusly when you activate your deck the trigger wire signals the amplifier to turn on which also triggers the power antenna relay. Radio illumination wire. Draw in red the horn circuit from the battery to ground. Gray radio ground wire.