Hi all:

i've installed this sony unit for over 6 months now. the sound is great and everything worked except this constant background hissing. I've had this hissing problem on another sony unit as well. I was able to reduce the hissing when i tuned down the mid-range treble. But this tuning option isn't available on the 7705x.

Anyway, i've connected the sony unit with the wires that went into the oem becker unit. So i'm wondering if there's an oem amp behind the rear seat cushion somewhere in this car where i'd be able to find better and cleaner sounding speaker connections for my sony unit?

I know the idea that this car has a separate factory amp sounds far-fetched, since i was able to get sound from the factory wires from the dashboard. But i need to find better speaker connections, at least the ones that won't make any hissing sounds.

Btw, this is a hissing sound at a constant audio level regardless of engine speed or volume level.

Much Obliged!

Mars