Needing some input on upgrading my audio I have for my early 2000 Majek. I want to replace my 6 6.5 speakers and upgrade my faceplate to Bluetooth capable. My question is what speakers and amp would you go with? Keep in mind I don’t need anything top of the line just something to hear over my 250 motor. Also could I just plug the Bluetooth attachment that Wetsound sells and make that work on my older Sony head unit?