[carnut108]

I'm in the process of doing exactly what your going to do. I think the REQ5 does what you want and that is the unit I'm installing, along with Boston Acoustic cabin speakers.
Member Ngiardina has been very helpful to me and he is using the REQ5, I think. Wish mine was up and running so I could give you a better answer, hopefully in the next few days it will be. If you PM Ngiardina I'm sure he will get back to you.