Originally Posted by ngiffin417
do i need some kind of special crimper or can i just use vice grips or pliers?
Special crimper for sure. Then, you still have to be careful to not cut the silicone. I've never seen self crimped wires that would withstand being removed once installed. The terminals always pull off the wire. Hopefully you have better luck or at least things have improved since the last time I tried probably 20 years ago.