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Car Forum / Nissan / Nissan Maxima / July 20061993 Maxima Radio Replacement
My Bose radio died a few years ago and I'm just getting around to replacing it with a radio / cd player / mp3 player that I bought at Wal-Mart this morning, Virtual Reality Sound VR3 CD Player. I bought the wiring adaptor and the converter for speaker level to line level and hooked everything up. But the radio won't come on. I know there's switched power since I can turn on the amps and I can play music via my mp3 player directly. I'm thinking that the problem might be with the ground. My questions are: 1 - Will the lack of ground prevent the radio from powering up? 2 - If I need to find a ground where's the best place? I tried connecting to the screw that held the old radio in place and the outside of the cigarette lighter. Any help would be GREATLY appreciated. Thanks, Joe > My Bose radio died a few years ago and I'm just getting around to > replacing it with a radio / cd player / mp3 player that I bought at [quoted text clipped - 17 lines] > Thanks, > Joe Yes, it won't come on without a ground. But the outside of the cigarette lighter is always ground as is likely the screw holding the radio in. You said you had switched power, but do you have the constant +12 wired as well? > Yes, it won't come on without a ground. But the outside of the cigarette > lighter is always ground as is likely the screw holding the radio in. > You said you had switched power, but do you have the constant +12 wired > as well? Yes, I have both switched and constant. I have the constant wire going to the radio's memory wire. So you're saying that either location should be a good ground? Thanks! Joe > Yes, it won't come on without a ground. But the outside of the cigarette > lighter is always ground as is likely the screw holding the radio in. > You said you had switched power, but do you have the constant +12 wired > as well? Yes, I have both switched and constant. I have the constant wire going to the radio's memory wire. So you're saying that either location should be a good ground? Thanks! Joe Another quick question: If I wired up the radio without a ground could the radio be damaged? Thanks! Joe > Another quick question: > > If I wired up the radio without a ground could the radio be damaged? > > Thanks! > Joe No, that won't hurt it. If you have power to both the constant and switched and a ground connection, I'd say it's probably defective. Take it under the hood, tie the constant and switched leads together. Hold them on the + battery terminal and touch the case of the radio to the - terminal. If it still doesn't come on, it's bad. Thanks Jim! I already returned one today to Wal-Mart because I thought it was defective. Might be it was just a ground problem. Joe > > Another quick question: > > [quoted text clipped - 8 lines] > them on the + battery terminal and touch the case of the radio to the - > terminal. If it still doesn't come on, it's bad. In my Nissans screwing the radio in (mounting) grounded it, also the antenna connection would ground it. Gary K > My Bose radio died a few years ago and I'm just getting around to > replacing it with a radio / cd player / mp3 player that I bought at [quoted text clipped - 17 lines] > Thanks, > Joe Thanks Gary. Were these Bose radios or replacements? Joe > In my Nissans screwing the radio in (mounting) grounded it, also the antenna > connection would ground it. [quoted text clipped - 22 lines] > > Thanks, > > Joe Note that some stupid CD players consume up to 0.14A in sleep mode. That means dead batt if parked for weeks... (Two pwr supply wires, one for mem settings, one run-pwr via ign key ...is one indication. Manuals were ashamed of warning about pwr consumption. Ol radio was connected directly, no need for key to get player on. My new USB player one cannot be, or batt will die: to listen, always ign key has to be turned Good ground is also found on the surroundin dash metal structure -- Wiikinki www.cardomain.com/ride/748507/ In the 1994 Maxima, I brought the Alpine head unit ground wire to one of the screws that holds the original radio bracket in place, thus grounding it. > My Bose radio died a few years ago and I'm just getting around to > replacing it with a radio / cd player / mp3 player that I bought at [quoted text clipped - 17 lines] > Thanks, > Joe I tried JimV's suggestion and connected the radio directly to the battery and it came on. I knew there was power on the switched wire but I never checked for power on the constant 12v. I connected the switched power wire to both switched and constant leads on the radio and again it came one. So it looks like the constant power wire is dead. Does anyone know where I can tap into constant power on any of the other wires in the radio area? THANKS again for everybody's help. Joe > I tried JimV's suggestion and connected the radio directly to the > battery and it came on. [quoted text clipped - 10 lines] > > Joe Cigarette lighter would work. Maybe your original radio did not die. Have you checked the fuses to see why the constant power wire is dead? > My Bose radio died a few years ago and I'm just getting around to > replacing it with a radio / cd player / mp3 player that I bought at [quoted text clipped - 17 lines] > Thanks, > Joe > Maybe your original radio did not die. Have you checked the fuses to > see why the constant power wire is dead? My original Bose radio was corroded and not fixable. I checked the fuses yesterday but not today. If I use the cigarette lighter does anyone know which wire would have the power? Thanks again, Joe FINAL QUESTION I found the power wire in the cigarette lighter. Not too hard since there are only 2 wires. :-) Can I just cut and splice in a new wire to go to the radio? Do I have to disconnect the negative connector on the battery or just cut the wire. Thanks, Joe > FINAL QUESTION > [quoted text clipped - 8 lines] > Thanks, > Joe It would be safer to remove the negative cable first. You had the Bose system? Did you get an adapter that was made for that? Are you planning to use the factory speakers? It might not work. > You had the Bose > system? Did you get an adapter that was made for that? Are you planning > to use the factory speakers? It might not work. Yes I got the converter from speaker level to line level at Wal-Mart and got the wiring adaptor from Crutchfield. I tested it out using the output of an MP3 player after connecting the amp wire to the switched wire. Sound came out great! Looks like I spoke too soon. Looks like the cigarette power is switched. Can anyone please point in the right direction to find constant power? Thanks again, Joe |
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