Built-in TV-KIT that easily enables TV viewing with the genuine switch. - Product Name: Built-in TV-KIT - Brand: Data System - Country of Manufacture: Made in Japan - Function: Adds TV viewing function - Switch Type: Compatible with genuine switch - Compatible Vehicles: Land Cruiser 300 Part Number: TTV411B-D Thank you for viewing. It was operating normally until removal. I was told by the dealer that this TV canceler does not cause malfunctions of the navigation system and can be used with confidence on the genuine navigation system, so I had it installed. Removal, etc., were also handled by the dealer. The usage period is approximately 10 months. It is suitable for the Land Cruiser 300, so please consider it.