Hello
new here, so in 2019 I purchased a pathfinder platinum 4x4, got a great awesome SUV, mind you, I did pay for a maintenance package which in my mind at the time I thought was a good idea , nope unlike my f150 were the maitence package covers it all at Nissan you still pay labor...so 100 for an oil change, whatever .so last winter I got stuck in some snow, turn the dial on the I control knob to lock the 4x4 only to see that my front left and rear right tire spinning, when I asked the dealer why they said they would have to look at it and check, I told them all work and labor passes on warranties for this they told me most of the work is free but I must pay labor.so anyone here knows why the 4x4 works that way instead of locking all 4 wheels it just locks 2.also I have the bose audio system anyone knows how to add another amp and woofer to it.