chevy silverado navigation system update

{"cid":"91099465","title":"Android 6.0 Buick GMC Chevrolet Car Multimedia Navigation System HD Video Big USB","imgUrl":"https:\/\/img.chinax.com\/nimg\/06\/0d\/9aba8497b6595e8650bee513a65c-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"ASTRAL|OEM","Model Number":"AST-7121","Minimum Order Quantity":"50pcs","Delivery Time":"15-20days","Certification":"CE|RoHs","Place of Origin":"China","Payment Terms":"L\/C|T\/T|PayPal|Western Union","Supply Ability":"10,000pcs\/month","Packaging Details":"Giftbox|Carton","Car Maker":"Buick GMC Chevrolet","OS":"Android 6.0","Bluetooth\/OBD":"Support","TPMS\/DVR\/Rear Camera":"Support","CPU":"Corte X A7 Quad core 1.6GHz, R16","TV":"Optional Analog or Digital TV( DVB-T, ISDB-T,DVB-T2)"}}

{"cid":"91219797","title":"7\" Screen OEM Style with DVD Deck For Chevrolet Avalanche Suburban Chevy Tahoe Silverado Pickup","imgUrl":"https:\/\/img.chinax.com\/nimg\/56\/dd\/c2e737a2269ca7cb85a16a623e5d-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"WITSON","Minimum Order Quantity":"1PCS","Delivery Time":"7 working days","Place of Origin":"CHINA","Certification":"CE, ROHS","Packaging Details":"According to customer needs","Payment Terms":"Paypal, Bank T\/T, others","Supply Ability":"10000pcs\/month","Brand":"Witson","Support":"GMC","Product Number":"TDV8972,TDB8972"}}