I got a Syntax Olevia LCD multi medeia Display Model number : LT37HVS i have a cable box, dvd player and VCR i ran my cable through the VCR and then to the tv i conected the dvd player directly to the tv with ther red yellow and white cables ... on my old tv this worked perfectly on this Syntax model i have no sound for my VCR i dont know how else to set this all up and i have no other red yellow and white cables .... can somebody please help me as soon as possible