Pie Amp?

radsterrad · 03-19-2005, 11:29 AM

Just Finished Installing A Pie Amp For Aux Input, Works Great But
I Also Get The Hum When You Accelerate. I Hard Wired It Into The 12 Volt Outlet. I've Read About This In Previous Threads But I'm Curious If Anyone Has Come Up With A Solution.

TexasTitan04 · 03-19-2005, 12:55 PM

You might want to install a gound loop isolator on it......It'll get the interference out. Only cost about $10-$15.......HTH's.

John C.

radsterrad · 03-19-2005, 03:51 PM

How Did You Wire This Into The Grounding Circuit?

Sammy Sandbag · 03-19-2005, 05:05 PM

Quote:

Originally Posted by radsterrad

How Did You Wire This Into The Grounding Circuit?

A ground loop isolator installs in the signal lines (RCA's.) Where did you ground your PIE at? Also, what 12V source are you using, the cig plugs? I notice a little alternator noise during quiet songs and high volume, but I've pretty much determined mine is from a bad mini connector. I haven't got around to troubleshooting/fixing it because I'm in the middle of a complete audio overhaul.

radsterrad · 03-20-2005, 05:35 PM

I Used The Cig Plug + And - , I'll Try The Ground Loop Isolator, But Do You Know If There Is A Difference Between The Cig Ground Vs. The Chasis Ground.

Sammy Sandbag · 03-20-2005, 06:56 PM

I couldn't really tell you the difference between the grounds, I would think that it would ground to the chassis at some point, but I could be wrong. You could always try grounding it at a different point, like the crossmember behind the dash.

radsterrad · 03-21-2005, 06:04 PM

I Picked Up The Ground Loop Isolator And Installed It This Evening,
It Makes Quite A Difference. I Think The Clarity Is Also Much Better
As I'm Using It For My Sattelite Radio. Thanks For The Help!!!