i have a 1995 chevy S10 blazer and i noticed that it has 5? speakers in the door and 6x9 in the back i started looking and i found that it has 4x6 in the dash with cardboard over it but it don't have speaker wire ran for it i think its going to be difficult running wire for it but what gauge of wire should i use? and should i run the speaker wire to the head unit how would i hook the speaker wire to the aftermarket head unit or should i run it to the 6x9 or 5? i already have a pair of 4x6's ready to be installed in it as soon as i find out how to do it and what size of speaker wire it is im going to be doing it by myself
common speaker wire will work fine. as for running new wires to the dash. i have found that if you cut the hook off a metal coathanger and bend one end 6 inches from the end, you can tire the speaker wire to the bend and thread it thru. it just takes a little patience. i would wire them to the door speakers.
It sounds like your head-unit's speaker output is undesirable. I recommend getting a sparkling head-unit. additionally, the wiring isn't undesirable, by using fact if it have been (working example a grounding concern interior the wiring) the fuse(s) for the radio might have blown and the radio would not artwork.