I'm a bit confused, but I think I know what you are talking about. You are saying cables, but I don't think that is what you mean. The cables, or the harness is the set of strings on the inner part of your bow as you look at from the back (as you would be holding it in your hand). And thy should be to the right of your string if you are right handed. If these are in your way, there is either something seriously wrong with your bow, or the way you are holding it.
I think is what you are trying to say is that where your peep sight is served in the string splits in order to hold the peep. It will either split into two, three or four parts. And sometimes when you draw back it rotates in a mannor that puts one of the sections of string in your view between the peep and the pins. I'm going to guess you have a peep that looks like a cheerio in your string. If it is the type that splits the string into three sections, I suggest getting one that splits it into four. Only becuase they are easier to get in the right position. If it is one that splits into two or four you just need to get it adjusted right to begin with. Take it somewhere and have them put a half a twist in your string (or out) and see if it helps. Chances are your string stetched some and now your peep does not rotate correctly any more. Pretty comon problem with peeps. That's why some use the rubber cord that attaches to them, or go with a peepless device like the No Peep.
You also may have installed the peep when the bow was new, or with a new string and now it has settled. Never fine tune a bow untill you have shot it for a little bit and the string settles in. You will most likely have to to change things a bit after this happens.
Solutions: Adjust your string so the peep rotates correctly at full draw. Use a rubber tube to align it correctly (takes away some speed and may be noisy). And possibly get better newer strings and cables. The newer cables are pre stretched and don't settle or rotate when you draw them back (unless you put a bunch of twists in them). And if you have a mathews with zebra string, I would suggest getting rid of it. I don't hear very good things about those strings. (the strings, not the bow, great bows, not so great strings from what I can gather)
If I'm not correct in my assumption about what is happening, let us know.
Here is a link for you to check out.
http://www.huntersfriend.com/bowselection.htm
Good luck,
Paul