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I had recently install DATA SYSTEM : TV-NAVI KITS(TTN-46) on my 2011 IS-F but everything seems correct and it works for the first couple of days while the car in motion. But after I insert a DVD disc and play it during motion then the Navi doesn't work anymore while it is in motion.
What can possibly went wrong? Anyone had this experience?
No its not. It's an aftermarket plug-n-play unit made by R-Spec Datasystems of Japan. I have this on my 09 IS F (which originally came off my old 07 GS 350).
Yes 2011 have a different system than 2008/2009 so it is very likely your addon is only compatible with Gen 5 systems not with the new hard drive systems