When I play CD's the sound is fine, but as soon as I press record, to copy the disc to the library I start hearing a loud clicking/buzzing sound. This sound is also present when I play back the recorded songs. If you press the "recording stop" button the sound goes away.

any ideas?

edit: these are not burned CD's, these are store-bought cd's.

Make sure your Z1 is grounded well. I have had this happen in an F-250 when using a Metra harness, turned out the factory ground wire sucked. I grounded the Z1 to a good chassis ground, noise gone.

Yeah things like an avic I rarely use the factory ground. If I do, I run a second ground to a dash brace or another good ground.

Yeah things like an avic I rarely use the factory ground. If I do, I run a second ground to a dash brace or another good ground.

I'll give that a try, thanks.

I had the shop check the ground. We went so far as to run a 10ga wire straight to the ground terminal on the battery. The problem still occurs. They're bringing in a new Z1 tomorrow... good thing I haven't customized it a lot yet.

for those 3 people on the internet that know how to use the search feature...

The new Z1 fixed the problem. No one at the shop had ever heard of this, even their Pioneer rep had never heard of anything similar. Who knows what was wrong, but the new unit fixed it

Probably that min fuse thing on the rca outputs.

Probably that min fuse thing on the rca outputs.

I'm not using an external amp, so I don't know what the RCA's would affect.

I don't know either. Guess there's a first time for everything.