radio installation problem

GMC SIERRA
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JPETTITT
  • MEMBER
  • 1 POST
Hi,
I have a 93 gmc Sierra with 92,000 miles, 350 5.7 liter engine. I recetly bought a new head unit/radio and was going to install it. So I unplugged the negative terminal from the battery. Then cut the existing wires to the old radio and cassette player. Then I hooked up the new radio and hooked up the negative terminal to the battery and the truck starts up and the starter keeps going, all without the key in it. PLEASE HELP!!!!
Aug 20, 2007 at 11:12 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
[quote:dbb0c71656="jpettitt"]Hi,
I have a 93 gmc Sierra with 92,000 miles, 350 5.7 liter engine. I recetly bought a new head unit/radio and was going to install it. So I unplugged the negative terminal from the battery. Then cut the existing wires to the old radio and cassette player. Then I hooked up the new radio and hooked up the negative terminal to the battery and the truck starts up and the starter keeps going, all without the key in it. PLEASE HELP!!!![/quote:dbb0c71656]

all without the key in it. PLEASE HELP!!!! The only way for this to happen is your power input to the switch is shorted to the starter circuit from the switch or the wiring.
Aug 20, 2007 at 11:46 AM
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