Remote and RCA wire install?

Anyone with a old series S10 or blazer I need some help on where to run my RCA and remote wires through the dash I have the ran on my passenger side right now if you can help me please let me know. :banghead:

not sure how much help this'll be for you, but what i did on my 2000 s-10 p/u was slowly drop the wires behind where the unit will be, found the opening next to air vents (kinda tricky and time-consuming) they'll come out on the bottom, along side the floor board heaters, and ran them through to amp. i know its a bit hard to understand. hope this helps