I have the New Baja Boss AT in 37x12.5x17 and they are pretty quiet. My only complaint was 1 tire was hard to balance but America's tire just ordered another one and switched it out when it came in. Black Rhino Chambers are the rims
So 3 of the tires balanced really easy with hardly any weights added and 1 didn't. America's tire is ordering a replacement for the one that was a pain to balance.
Finally was able to get the Mickey Thompson 37x12.50x17 with the Black Rhino Chambers installed yesterday. I put a teraflex level kit on the front until the lift kit and shocks come in. I couldn't be happier with the service from America's tire.
I just order some dash speakers to start for the upgrade. I'm with you on spending the $$ on the amp and everything to just replace it. Hopefully the dash speakers make a noticeable upgrade.
There is also shipping delays from Union Pacific. They are not sending any box cars to the Midwest for the next 2 weeks due to backlog in midwest of railcars