Need Help Quick

[Kfra315 10+ year member]

SO I just installed my brand new Kenwood X890(sexy deck) and I used a metra wiring harness. Now that I got everything connected and I put it all back together my car is vibrating pretty strong and the RPM's are really down at idle. The actually cut out the first two times I started it. What could be causing this. Would it be some kind of short?

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[Bluecamry 10+ year member]

Check the battery and then ground.

 

[Coolwazabi 10+ year member]

its vibrating cause the idle is too low and is barely enough to be on... i think ur computer in ur car my be F-ed up..