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View Full Version : Quicky: Testing a HeadUnit



danteBirosel
10-19-2005, 06:35 PM
Is it possible to test it without hookin it up on the dash? thx.

DBfan187
10-19-2005, 07:47 PM
take the acc wire and battery(+) wire and connect it to the battery(+)
take the ground wire and connect it to the battery/ground.(-)

iceteebone
10-19-2005, 08:31 PM
take the acc wire and battery(+) wire and connect it to the battery(+)
take the ground wire and connect it to the battery/ground.(-)


x2. that'll tell you if it powers up so just hook a speaker to one of the speaker leads to test the internal amp.

lc498
10-19-2005, 08:38 PM
x3, i usually get some speaker wire and connect the black wire to one side, the red\yellow wires to the other side and the black wire side goes to the battery -, and the red\yellow side goes to the battery + side, and cram them on (or use alagator clips if your special) and then pop a disc in and sit ther ewith each speaker terminal and test all the outputs on a spare speaker :)