ok so heres the weird part ive have my stero in for a while now so thats not the problem the thing is i was puttn in my boost gauge today and after im all done routing wires and the tube and what now i go to turn on the car ( 2001 audi a4 1.8t tiptronic) and my stero is dead along with the climate control buttons. the buttons on the climate controll light up but i cant get into the funcation part. maybe i bumpd somthn routing my turbo gauge or is there a relay that run the radio and climate? anyone have any ideas on whats up or which relays work these things? having no tunes suck! the radio gets power and is grounded and it turns on my amp and capacitor so maybe the turn on for the stero runs somewhere back to a relay same with the climate controll... all fuses are good. any help would be greatly apprcaited!

 

You either blew a fuse or disconnected something...


What'd you wire the gauge lighting to?


btw, you should sell your capacitor.

 

Did you ever fix the problem jjcrt2? I have the same problem. I tried to install a switch to turn my aftermarket radio on manually and forgot to use a diode. Now it only comes on with my switch and not the ignition.