;) I had this Vaistech installed. The first one had a defection cable (random problems, more when it was cold). Vaistech support was good and helped me replace the defective unit. Since then, the SLI from them work GREAT within my 2006 GX 470. I have since showed to 4 other lexus owners that have purchased the unit. They all like it as much as I do, and with no like issues. RDL