Just got a 2019 1500 SLT classic crew cab. My last truck was a 2000 Dakota SLT, so I'm a bit out of the loop. I get Tradesman, Bighorn, Laramie, etc but when I go to accessory sites, often they use designators like (DS\DX). What does that mean? Also, often there's no option for SLT, but I'm assuming that an SLT is just a bumped up Tradesman. Is that right? Where can I find the decoder ring for all of these labels?