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With center console open exert some forward pressure from the rear of the heater control assembly. It will come loose and then it lifts up. You might need a small screwdriver to pry on it if it is tight. Be sure to wrap the end of the screwdriver with electrical or duct tape to keep from scratching the panel. I did disconnect the negative terminal of the battery...when you hook the power back up, remember to recalibrate your seat memory as per the owners manual. I did not get the VAIS unit with the aux input, mine only does XM. I installed the VAIS unit in my 2005 model, it took about an hour. The most time consuming portion is running cables and getting the equipment in place. I installed mine in the area under the glove compartment. It has been about 6 months since I performed the installation, so I am writing this from memory. To remove radio, do the following: 1. Open center console and gently pull seat heater switch plate out which then will allow you to pull the plate covering the gear shift and the portion below the radio that includes the ashtray. Note: You will need to take gear shift out of the park position to get cover off. There are several wires that all have plugs that you will need to unplug to fully remove the gear cover. 2. Remove two 10mm bolts below radio. 3. Now grip the bottom portion of the climate control panel that is located above the radio with both hands and carefully rock it as you pull it towards you. Just like the gear shift cover, it is held in only with clips, no screws. Once you pull it out, you will have access to the two screws above the radio. 4. Remove 2 screws above radio and pull radio out. 5. Unplug connector on rear of radio and follow instructions that came with the VAIS unit. NOTE: The Lexus service manual always advises removing the negative battery terminal before removing anything from the dash. This is to avoid accidentally triggering the airbags. If you choose to do this, you will lose all the saved memory locations in your GPS and you will also need to re-set the limits on both your power seats in order to get the seat memory feature to work. This is explained in the owners manual. Good luck! BTW, the VAIS unit works well and sounds great.

I installed the VAIS unit in my 2005 model, it took about an hour. The most time consuming portion is running cables and getting the equipment in place. I installed mine in the area under the glove compartment. It has been about 6 months since I performed the installation, so I am writing this from memory. To remove radio, do the following: 1. Open center console and gently pull seat heater switch plate out which then will allow you to pull the plate covering the gear shift and the portion below the radio that includes the ashtray. Note: You will need to take gear shift out of the park position to get cover off. There are several wires that all have plugs that you will need to unplug to fully remove the gear cover. 2. Remove two 10mm bolts below radio. 3. Now grip the bottom portion of the climate control panel that is located above the radio with both hands and carefully rock it as you pull it towards you. Just like the gear shift cover, it is held in only with clips, no screws. Once you pull it out, you will have access to the two screws above the radio. 4. Remove 2 screws above radio and pull radio out. 5. Unplug connector on rear of radio and follow instructions that came with the VAIS unit. NOTE: The Lexus service manual always advises removing the negative battery terminal before removing anything from the dash. This is to avoid accidentally triggering the airbags. If you choose to do this, you will lose all the saved memory locations in your GPS and you will also need to re-set the limits on both your power seats in order to get the seat memory feature to work. This is explained in the owners manual. Good luck! BTW, the VAIS unit works well and sounds great.

I just leased a new 2005 with all the options. Sticker price was $68,700 and the 48 month lease is $805.00 with no cap reduction. I could have purchased it for $59,900.

I recently purchased a new SC430. It has voice recognition but I do not see a list of commands in the owners manual. Does anyone have a list of the commands that you can share?