Ok so today i noticed that my left front speakers were not working so when i got home from school i took the front dash off and looked at the radio. This is an after market radio they put in when i bought the blazer cuz the previous one didnt work. So i took the two brakets off but should be four and screws were loose and looked behind it i only had close to 10 wires going to the radio 7 from a plug that was plugged in the radio and 3 from a massive plug that had a bunch of wires cut like they were there but looked like thwy were cut from the plug and pulled out. So i am asking if anybody could help me out here i have no idea what any wire is i have looked and cant figure why all those wires are cut and my back speakers dont work. Please help me on this any help is greatly appreciated

 

I have installed many after market stereo's in my rides, so I will try to help if I can. The easiest and fastest way is to use a wire harness to connect to your trucks radio harness and then connect the new harness to your new stereo's wire harness. Although I didn't do that cuz I'm cheap and didn't want to buy the new harness. LOL. Here is the color code for the trucks radio for power to speakers.