I JUST got my bass guitar from one of my friends and i've been itching to play it, but i can't. When i plug it into my amp i don't hear the sound of the bass. I know the amp works because i can hear it, but no bass. I also wonder if there is some type of connection problem because my bass's connection is a bit loose. I opened the connection area and saw one wire and the three prongs on the connector. I don't know how bass guitars work in terms of connection so plleeze can u help.