I am a 1st time owner of a 1980 FJ40 LC and am still trying to get acquainted with the controls for example, I donāt know what this conte operates nor do I understand the stmb. I had a front and rear heater installed and cannot figure out how to turn the heaters on I had to have the gas tank replaced and now the fuel gauge doesnāt work. Would LOVE for someone to help me and walk me through these basics Please and thank you!!!