wiring issue

[josh_lulu]

First off, i hope i have this posted in the right thread. Below is a picture of a black and gray connectors. They sit right close to the part that goes through the firewall. Let you tell you this..... my truck is a 1986 cab and frame. The rest is a 1991 ford explorer. I have it all wired except i am lost.... I need to know if anyone knows where these wires go? I have looked and looked, but no good. I was wondering if those are my taillights connector, or what? Do explorer's taillights wires run inside the vehicle? If anyone can help that be great. Thank you

 

[yyc_tbird_sc]

If I read your post right, then those should be the original connectors for the factory stereo system. I can't remember which one is which, but one has power, ground, dash lights, antenna, etc on it and the other is for the speaker outputs.