TEXA Marine & Bike (3903689) - Power Supply and Adapter Kit for TXTs
If you own the Navigator TXT adapter you will need this power supply and adapter cable kit to connect most boat and bike diagnostic cables through the TXT box for full diagnostic interface. The TXT adapter is typically used for Truck and Off Highway diagnostic software or it can be used to bundle multiple software together (Truck/Off Highway/Marine/Motorcycle software).
Please note that if you have a TXT box, you will need to purchase part number 3903689. If you already have the battery cables from the OHW kit, then the 3902952 is only needed.