How much will it cost to replace my transmission

Hello, both of these concerns are more specialized than the RepairPal Estimator tool will have information on. You'll need to consult some shops near you to get some real world quotes - first on the transmission -- and your options (rebuilt, used, and so on), and then on troubleshooting the audio concern. Here's a link to look into finding a shop near you: www.repairpal.com/repair-shops