super multi junction plug question

[luckie2hav3her]

first off does it matter how tight i tighten the multi junction plug?? cuz if i tighten it too tight, a blue relay with 5 wires coming out, (black, orangish, red-white, black-yellow, pink) that relay starts to buzz and my car lacks power, like as if no alternator is running, now if i dont tighten that much it works fine, but if i move it around a bit, the battery light turns on and everything dims like theres no power.... doesnt seem like a solid connection is being made... is it possible to rewire all the wires into the plug?