New 2011

I bought a 2011 on ebay. It had 29000 miles on it. then previous owner had all ready and Toyota service do the 30000 mile on it. Very clean car. He had extra floor mats and a weather tech cargo mat. I paid 15700.00 for the car. Much under book. I am happy except for the JBL non Nav radio. It doesn't play nice with my Samsung G4 and streaming of navigation I am all ready looking at aftermarket HU with NAv built in. I am trying to find a unit that uses the steering wheel controls and maybe the present Microphone. Tons of info to sift through here but hard to tell what instances pertain to my specific unit. Thanks for all you guys do though.