Static noise coming from RM6600 speakers
First post and quick question. Not very audio savvy, so I asked my friend to connect my RM6600 speakers to my receiver. We used 18 gauge monster wire and it's all connected to the PSW202 subwoofer and Technics receiver (model # SA-EX500). Receiver is pro logic and not 5.1. Anyways, what I notice is that when I just turn on the receiver, using any component mode that is not actually connected such as my phono or CD, there is some "static" noise similar to when a TV channel which does not transmit a signal or radio frequency is tuned in to. I also notice when using dvd, vcr, and also just watching cable TV, the noise exists.
The noise is barely audible when the volume on the receiver is off, but as I turn the dial, it increases. The static noise comes from all the speakers, satellite and center. I've also tried switching satellites and centers around and it seems it is clearly not the speakers being faulty.
Is this something that is "normal"? I'm guessing it could be symptom of the receiver being that it is an old receiver (circa 1997/1998), but at the moment, I paid my friend $25 for the receiver which he bought back then for ~$250-$300, I couldn't go wrong! The PSW202 sub functions fine as well. I checked the speaker wires to ensure the wires weren't frayed at all or were crossed and that the connections were all good.
I'm stumped if there is anything simple I can do to remedy this minor annoyance or is this sound something that is normal with all speaker systems similar to this?
Excuse the question if it seems like a silly one!