I have a 1979 300CD Mercedes which already as a 500 watt amp in it. Diesels require a lot of power for start up, especially in the winter since they use glow plugs to warm up the engine block before they start. Suppose I am driving on a rainy night, with mp3 cranking and headlights. Would I be draining the car battery so that I couldn't start up in the morning? Also has anyone tried connecting their system to other car electronic stuff, such as radar detectors, power windows, alarm systems, or dashboard. I always thought it would be neat to hear a radar detector through the car audio system rather than drowned out by the audio volume.
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Diesel questions, newbie