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The problem is a bad radio and to fix it it must be replaced unless there is a possibility you have small kids and maybe one stuffed some coins inside and it's being shorted out, if this is the case it can be removed and the radio cover screws can be removed to allow the coins to come out. It's now a wiring problem because it only have 1 power and 1 ground so if it come on when holding that button your wiring is good!the problem is internal. Thanks please give a positive rating and reply back any other questions. Thanks