hi, i'm having a little problem and really need your help: Here is what i have installed:

CDA-9886 and a Kicker KX500.2 to a CDT component for fronts. For some reasons, i couldn't get any sounds output for the CDT componet set. The manufacture rear speaker sound fine. I read some thing about turning off the internal amp, Is there an option that i can turn off the internal amp? and how come i'm not getting any radio signal but i can play cd just fine?

thanks for your help !