I have a 2014 with the Sony upgrade. Passenger speaker is going out on me. I don't want to replace with OEM. Looking for something a little better without dropping to much money. Local audio place recommended the JL Audio C1-650 component speakers. Said they would just have to fab a back plate for the door speaker. Will they fit in the front door without a back plate or is it needed? Also thinking of going with the C1-570x coaxial for the back. Open to suggestions. Thanks for any help