A larger Tundra was introduced at the February 2006 Chicago Auto Show. It had lifted cues of its smaller brother the Toyota Tacoma along with some cues from the Toyota FTX concept truck

Information provided by: https://en.wikipedia.org/wiki/Toyota_Tundra#Second_generation_.282007.E2.80.93present.29

Premium Audio vehicles with factory amplifiers may require AXADBOX1 or AXADBOX2