Hissing from right front speakers

[Buick Mark]

Im getting a hissing noise from the right front dash speaker and right door speaker in my GN. The radio is a Delco concert sound II with EQ. The volume control has no effect on it, its a steady hiss. Everything else works fine. The right rear speaker is fine also, no hiss. Any ideas?

 

[adowningusa]

Im getting a hissing noise from the right front dash speaker and right door speaker in my GN. The radio is a Delco concert sound II with EQ. The volume control has no effect on it, its a steady hiss. Everything else works fine. The right rear speaker is fine also, no hiss. Any ideas?

I'd be loking for a vacuum leak. There are a few lines up there to control heater blend doors and such. Just a thought for a Monday Morning!

 

[Buick Mark]

I'd be loking for a vacuum leak. There are a few lines up there to control heater blend doors and such. Just a thought for a Monday Morning!

The engine isnt running, thanks for the idea tho.