vw touran no dash no ignition 

Change relay for ignition system.

Hi! I have no dash ligjts but the car start for 5 seconds and then is death and then without to turn the key the car troy to start bot nothing because de dash is off! In the engine fuse box i find one slot fuse(F8) without fuse and i add one and then is working the dash and the engine start! All this after an short circuit on the radio side! Is it possible to be the relay? Because i want to take out the fuse i put in the engine fuse box and to work the car like before without this fuse there! Thank you the car is an Vw golf 6 2010 diesel

Where do I find this relay because now I have just verified that the connector of my switch has no power. they are 6 pins. Help me