I went with this low heat resistor for $24 a pair which is on the expensive side vs cheaper ones on Amazon or ebay. I turn on the blinker for about 10 minutes and the resistor becomes hot to touch, but not like it would melt anything. This gives me a peace of mind mounting to the plastic fenders.can you show or tell how you installed the resistors and where? Dealing with this issue right now.
I used 4 or 5 zip ties to tie it to a plastic block near the fender light. For wires, you can T-tap into negative (Black color) and turn signal power (I recall it's green and white)