terryt Posted 16 hours ago Share Posted 16 hours ago i am installing an aftermarket radio in my 90 MJ can someone please help me with the wiring diagram please Link to comment Share on other sites More sharing options...
Gojira94 Posted 11 hours ago Share Posted 11 hours ago Your aftermarket stereo will (should) come with a connector for itself, with bare ends for whatever you're putting it in. I used a Metra adapter from Crutchfield for the factory harness side. I don't have a 1990 Electrical manual, but I believe it's the same as 1988. https://www.crutchfield.com/p_120701002/Metra-70-1002-Receiver-Wiring-Harness.html?tp=2977 Link to comment Share on other sites More sharing options...
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