I was driving and i notice my radio and my lights inside the car had went out and came back on. The reason they cut back on was because i gave it more gas. Then i parked the car for 15 minutes and tried to start it and it didnt cut back or nor did anything light up. 2 seconds later i tried again and the lights came on but not the car. The 3rd time i tried nothing came on...

I took the battery out and got it tested and it was a good battery.
I called my friend who works on EURO cars and he said it might be a main fuse or something...Im trying to get some idea of what it is...

Can yall help me please???

 

The fuses would be a good place to start, beyond that, kind of hard to say. Theres a lot of wires in a car...

 

Make sure the battery terminals are tight. Also check the main grounds (the black wire off the battery is tight on the other end and the big mess near the fuse box)