Camaro_87

ok i bought a 87 z28 two weeks ago and it had no radio and the wires that came out of th edash were cu tan dmissing the connectors. so i purchased the correct connectors and found a factory am fm casstte radio on ebay. today i was hooking it all up i got power to the radio when i pushed the power button the power antenna would go up. then i tried connecting the speakers and thats where i must of did something wron becuase i went to plug the speaker wire in the radio and it kinda sparked on me and now the radio doesn't seem to work do you think i shorted out the radio or is there something else i did if so is the radio garbage now??

robmonte

did you check the fuses, theres two one for the radio and one for the constant

Camaro_87

Yeh i checked the fuses and there was about 2 or 3 that were burnt out, and they were number 30 fuses isn't that to high?? So i was gonna replace them with number 20 fuses but i had were 15's so i put those in and the radio still dosn't work. But i noticed that i also burnt out the interior light, the one beside the drivers head and only comes on when the door is open but that works now with the new fuses. Do you think i really need the number 30 fuses in there?? And also you wouldn't happen to know a website that will show me a wiring diagram of the radio would you??

NEEDAZ

It's vary possible that you damage the HU (head unit). If thing when south as you where playing with the speaker wires it's more then likely the amp (if it's a stock HU it use discrete parts instead of an amp IC. But before we condemn the radio there is some more trouble shooting to do. Start by disconnecting all the speaker wire and just use ground, B+, and ACC. That should be all you need to power things up. Do you have a DMM/volt meter? If so check for B+/constant and ACC/switched using the ground wire as your meter ground. I say to use the harness ground because this will 'test' (just a little) the ground. If you get odd reading from B+ and ACC check the resistance of the harness ground to chassis ground. If you've got ground, B+, and ACC it should power up, if not time to get a new HU.

robmonte

You could check under this site- technical articals- Electrical- 1986 wiring dia. They may help. Don't ever put fuses rated higher in, you can put lower rated fuses is but they may just keep blowing. Check an owner manual if you can.

Camaro_87

where is this technical article section?? i can't seem to find it

Camaro_87

Nevermind i found it.