I’ve been debating this... my MY has the speaker, bur liter after I backed it into my driveway off the truck delivering it, I added the isolation kit to disable it...
Does the low speed sound and reverse sounds override custom sounds? Because if they don’t, then you could play around with it when you wanted and then switch to your custom sound which is just a mp3 with dead silence and it would essentially play “nothing” and be in stealth mode. Then when you want snake jazz or something else you could just switch back to the defaults or another custom track...