remusrm
Junior Member
I used to have a pioneer deh 4800MP and is a great unit. But changed it for the 2900MP. Now both have this really odd hiss. Is mostly between song, or rather when there is no noise? More like a noise from the cd spinning? is not the RCA, since I unplugged them and only happens into the inside speakers that are powered off the head unit? I thought was the ground and made additional ground over the one from the harness. Any other ideas? I got the metra plug and play connections and it still does it.