Q: How to remove and install the navigation antenna on 2006 Toyota Highlander?
A: A proper navigation antenna removal requires disconnecting the negative cable followed by a 90-second wait time to stop Air Bag deployment. Then, proceed to remove the steering wheel No.3 cover lower, steering wheel No.2 cover lower, steering pad, steering wheel assembly, steering column cover lower, steering column cover upper, headlight dimmer switch, wiper switch, instrument cluster finish panel sub-assembly center, integration control and panel assembly, instrument panel finish panel lower, instrument cluster finish panel assembly, instrument cluster finish panel garnish, combination meter assembly, instrument panel finish panel sub-assembly lower, instrument panel insert sub-assembly lower LH, instrument cluster finish panel assembly center, floor carpet cover center LH, floor carpet cover center RH, front seat armrest assembly center, console box assembly, glove compartment door assembly, instrument panel No.2 finish panel lower, front passenger Air Bag assembly connector, front pillar garnish LH, front pillar garnish RH, front door scuff plate LH, front door scuff plate RH, cowl side trim sub-assembly LH, cowl side trim sub-assembly RH, and instrument panel sub-assembly. To install the navigation antenna, secure it with the 2 screws and engage the 3 clamps, followed by the installation of the instrument panel sub-assembly, cowl side trim sub-assemblies LH and RH, front door scuff plates LH and RH, front pillar garnishes LH and RH, reconnecting the front passenger Air Bag assembly connector, and installing the instrument panel No.2 finish panel lower, glove compartment door assembly, console box assembly, front seat armrest assembly center, floor carpet covers, instrument cluster finish panel assembly center, instrument panel insert sub-assembly lower LH, instrument panel finish panel sub-assembly lower, combination meter assembly, instrument cluster finish panel garnish, instrument cluster finish panel assembly, instrument panel finish panel lower, integration control and panel assembly, instrument cluster finish panel sub-assembly center, wiper switch, headlight dimmer switch, steering column covers upper and lower, steering wheel assembly, steering pad, steering wheel No.3 cover lower, steering wheel No.2 cover lower, and finally reconnect the cable to the negative battery terminal while inspecting the steering pad and SRS warning light.