Hello guys, I bought a 1987 MR2 and there was no radio. So i got a plug and play radio from another toyota (the plugs are exactly the same) and when i pluged it in the radio does not turn on. I have checked the fuse in the back and it checks out good. i also put the fust tester into the plug and it checks out (it's the one circled) any one can help me out plz
