recommend a good amp for starter system

[JTz62 10+ year member]

The Diamonds are nice, but you could check out a few others....DEI Studio, Orion HCCA, and you already mentoned JL XR's. I guess it all depends on how much money you want to spend on components. Audition as many as you can, because what sounds good to us might not sound so good to you. But, back to the original post topic....an amplifier to run the comps, and a sub.

 

[soundgy45 10+ year member]

To fix the headunit rca problem. It's simple to fin d speaker level inpuit to rca adapter for under $40, if that much. If you want factory do that.