Alpine HK stereo "no cd"

Got that working next is to find a duel antenna input adaptor. Anyone found one of these?

Also i am getting feedback from the engine. a wistle that increases with the revs. any clues on that?

Cheers Matt

I don't have a amp power from my HU on anything else but the radio. Bit weird. I put acc power to the amp from the acc power on to the HU. Seem to work.

Do you think this is a fault on the stereo? Cheers Matt