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Thanks for reading, everyone. I need some help troubleshooting a hard contact "bang" noise when my 87 GN goes through a steep dip (for example a transition joint on the highway between bridge and pavement). It only happens when the car has 2 or more people. The noise sounds like it's metal on...

Hoping to get some advice on troubleshooting my most recent issue with my 87 GN. On ignition my Scanmaster G immediately says "no data available" for just a moment and then goes completely black and remains that way. The process just repeats itself every time I fire up the car. I am running a...

Hello everyone, I've had my 1987 Grand National for about 8 months now and recently my volts light came on in the dash. I had the battery tested, it tested bad, bought a brand new battery, installed it, and same issue. Volts light still on. I started doing some testing with the multimeter and...

I know this topic has been covered thoroughly in the past and I've been researching and taking notes to try and compile as much information as possible from all the different threads through the years. I'm rounding out my sound system for my 87 GN and am looking for install/wiring advice...