Hello I am in need of some help. I just bought a 2003 ranger 3.0 2wd with 150,000 miles yesterday. I have an amazing 270,000 mile 2000 3.0 as well that I drive everyday but the newer one is having some issues.. The truck beeps for like 4 mins when I start it up and then about 30 mins later it'll do it again. There isn't any lights flashing and its not the seat belt beep. 2nd, the radio is hard wired to the battery and I was wondering if there is any reason the positive and constant wouldn't work going to the radio other than a bad fuse? And 3rd my rpm gauge stays at 4 grand when its started but goes down when vehicle is off. Any ideas?

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JordanTheFordMan