hes gonna need both an iron(for soldering the remote wire) and a torch(if hes wanting to solder the terminals onto the power and ground wires)....personally i see no problem with a t-tap on the remote wire(if its installed correctly) being as it is such a low current application...and unless the amp kit is 0/1 gauge any set of klein style crimpers should do the trick for the terminals...i use soft copper terminals because they crimp WORLDS easier