Alright! I have a 2019 High Country with the Bose. The dealer had the truck for 7 hours but whatever. Kicker bass knob was routed myself and plugged in by the dealer. I left the lot sorely disappointed in the bass level. Honestly, max everything it wasn’t much deeper than the stock Bose system. Then I recalled a memory from this thread about the 6 switches on the amp. Mine was 1, 4, 5, 6 up and 2, 3 down. I went all up and BOOM.. there she was! What a complete change those switches made. I tried 1-5 up and 6 down and I’m on the fence as to which I like best. I no longer need bass settings maxed. Finally!